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Finding the Fourth Proportional to 10,869.73, 15,000.21 and 5,901.73

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Solution

The fourth proportional to 10,869.73, 15,000.21 and 5,901.73 is: 8,144.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,869.73 : 15,000.21 = 5,901.73 : x
  2. Step 2: Convert to fraction form
    10,869.73/15,000.21 = 5,901.73/x
  3. Step 3: Cross multiply
    10,869.73x = 15,000.21 × 5,901.73
  4. Step 4: Simplify right side
    10,869.73x = 88,527,189.36
  5. Step 5: Solve for x
    x = 88,527,189.36/10,869.73
  6. Step 6: Final answer
    x = 8,144.38

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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.