Home / 9,165.52-12,681.75-7,989.04

Finding the Fourth Proportional to 9,165.52, 12,681.75 and 7,989.04

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Solution

The fourth proportional to 9,165.52, 12,681.75 and 7,989.04 is: 11,053.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,165.52 : 12,681.75 = 7,989.04 : x
  2. Step 2: Convert to fraction form
    9,165.52/12,681.75 = 7,989.04/x
  3. Step 3: Cross multiply
    9,165.52x = 12,681.75 × 7,989.04
  4. Step 4: Simplify right side
    9,165.52x = 101,315,008.02
  5. Step 5: Solve for x
    x = 101,315,008.02/9,165.52
  6. Step 6: Final answer
    x = 11,053.93

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Similar ratio
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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.