Home / 10,968.52-15,126.54-9,381.16

Finding the Fourth Proportional to 10,968.52, 15,126.54 and 9,381.16

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Solution

The fourth proportional to 10,968.52, 15,126.54 and 9,381.16 is: 12,937.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,968.52 : 15,126.54 = 9,381.16 : x
  2. Step 2: Convert to fraction form
    10,968.52/15,126.54 = 9,381.16/x
  3. Step 3: Cross multiply
    10,968.52x = 15,126.54 × 9,381.16
  4. Step 4: Simplify right side
    10,968.52x = 141,904,491.99
  5. Step 5: Solve for x
    x = 141,904,491.99/10,968.52
  6. Step 6: Final answer
    x = 12,937.43

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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.