Home / 13,182.65-18,192.02-7,132.88

Finding the Fourth Proportional to 13,182.65, 18,192.02 and 7,132.88

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Solution

The fourth proportional to 13,182.65, 18,192.02 and 7,132.88 is: 9,843.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,182.65 : 18,192.02 = 7,132.88 : x
  2. Step 2: Convert to fraction form
    13,182.65/18,192.02 = 7,132.88/x
  3. Step 3: Cross multiply
    13,182.65x = 18,192.02 × 7,132.88
  4. Step 4: Simplify right side
    13,182.65x = 129,761,403.10
  5. Step 5: Solve for x
    x = 129,761,403.10/13,182.65
  6. Step 6: Final answer
    x = 9,843.34

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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.