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Finding the Fourth Proportional to 11,775.55, 16,234.55 and 10,089.74

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Solution

The fourth proportional to 11,775.55, 16,234.55 and 10,089.74 is: 13,910.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,775.55 : 16,234.55 = 10,089.74 : x
  2. Step 2: Convert to fraction form
    11,775.55/16,234.55 = 10,089.74/x
  3. Step 3: Cross multiply
    11,775.55x = 16,234.55 × 10,089.74
  4. Step 4: Simplify right side
    11,775.55x = 163,802,388.52
  5. Step 5: Solve for x
    x = 163,802,388.52/11,775.55
  6. Step 6: Final answer
    x = 13,910.38

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Half scale
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Double scale
Find fourth proportional to 11,776.55, 16,235.93 and 10,090.74
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.