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Finding the Fourth Proportional to 10,409.04, 15,635.03 and 9,959.90

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Solution

The fourth proportional to 10,409.04, 15,635.03 and 9,959.90 is: 14,960.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,409.04 : 15,635.03 = 9,959.90 : x
  2. Step 2: Convert to fraction form
    10,409.04/15,635.03 = 9,959.90/x
  3. Step 3: Cross multiply
    10,409.04x = 15,635.03 × 9,959.90
  4. Step 4: Simplify right side
    10,409.04x = 155,723,207.32
  5. Step 5: Solve for x
    x = 155,723,207.32/10,409.04
  6. Step 6: Final answer
    x = 14,960.38

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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.