Home / 13,182.68-18,192.04-7,132.90

Finding the Fourth Proportional to 13,182.68, 18,192.04 and 7,132.90

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Solution

The fourth proportional to 13,182.68, 18,192.04 and 7,132.90 is: 9,843.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,182.68 : 18,192.04 = 7,132.90 : x
  2. Step 2: Convert to fraction form
    13,182.68/18,192.04 = 7,132.90/x
  3. Step 3: Cross multiply
    13,182.68x = 18,192.04 × 7,132.90
  4. Step 4: Simplify right side
    13,182.68x = 129,761,875.49
  5. Step 5: Solve for x
    x = 129,761,875.49/13,182.68
  6. Step 6: Final answer
    x = 9,843.36

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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.