Home / 13,101.29-18,079.67-7,132.95

Finding the Fourth Proportional to 13,101.29, 18,079.67 and 7,132.95

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Solution

The fourth proportional to 13,101.29, 18,079.67 and 7,132.95 is: 9,843.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,101.29 : 18,079.67 = 7,132.95 : x
  2. Step 2: Convert to fraction form
    13,101.29/18,079.67 = 7,132.95/x
  3. Step 3: Cross multiply
    13,101.29x = 18,079.67 × 7,132.95
  4. Step 4: Simplify right side
    13,101.29x = 128,961,382.13
  5. Step 5: Solve for x
    x = 128,961,382.13/13,101.29
  6. Step 6: Final answer
    x = 9,843.41

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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.