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Finding the Fourth Proportional to 8,632.19, 11,883.62 and 8,235.46

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Solution

The fourth proportional to 8,632.19, 11,883.62 and 8,235.46 is: 11,337.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,632.19 : 11,883.62 = 8,235.46 : x
  2. Step 2: Convert to fraction form
    8,632.19/11,883.62 = 8,235.46/x
  3. Step 3: Cross multiply
    8,632.19x = 11,883.62 × 8,235.46
  4. Step 4: Simplify right side
    8,632.19x = 97,867,038.34
  5. Step 5: Solve for x
    x = 97,867,038.34/8,632.19
  6. Step 6: Final answer
    x = 11,337.45

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Half scale
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Double scale
Find fourth proportional to 8,633.19, 11,885 and 8,236.46
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.