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Finding the Fourth Proportional to 10,869.62, 14,999.85 and 5,901.62

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Solution

The fourth proportional to 10,869.62, 14,999.85 and 5,901.62 is: 8,144.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,869.62 : 14,999.85 = 5,901.62 : x
  2. Step 2: Convert to fraction form
    10,869.62/14,999.85 = 5,901.62/x
  3. Step 3: Cross multiply
    10,869.62x = 14,999.85 × 5,901.62
  4. Step 4: Simplify right side
    10,869.62x = 88,523,414.76
  5. Step 5: Solve for x
    x = 88,523,414.76/10,869.62
  6. Step 6: Final answer
    x = 8,144.11

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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.