Home / 11,108.25-15,319.45-9,216.83

Finding the Fourth Proportional to 11,108.25, 15,319.45 and 9,216.83

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Solution

The fourth proportional to 11,108.25, 15,319.45 and 9,216.83 is: 12,710.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,108.25 : 15,319.45 = 9,216.83 : x
  2. Step 2: Convert to fraction form
    11,108.25/15,319.45 = 9,216.83/x
  3. Step 3: Cross multiply
    11,108.25x = 15,319.45 × 9,216.83
  4. Step 4: Simplify right side
    11,108.25x = 141,196,766.34
  5. Step 5: Solve for x
    x = 141,196,766.34/11,108.25
  6. Step 6: Final answer
    x = 12,710.98

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Half scale
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Double scale
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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.