Home / 10,666.18-15,990.92-6,505.41

Finding the Fourth Proportional to 10,666.18, 15,990.92 and 6,505.41

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Solution

The fourth proportional to 10,666.18, 15,990.92 and 6,505.41 is: 9,753.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,666.18 : 15,990.92 = 6,505.41 : x
  2. Step 2: Convert to fraction form
    10,666.18/15,990.92 = 6,505.41/x
  3. Step 3: Cross multiply
    10,666.18x = 15,990.92 × 6,505.41
  4. Step 4: Simplify right side
    10,666.18x = 104,027,542.71
  5. Step 5: Solve for x
    x = 104,027,542.71/10,666.18
  6. Step 6: Final answer
    x = 9,753.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.