Home / 18,117.97-27,171.29-8,752.16

Finding the Fourth Proportional to 18,117.97, 27,171.29 and 8,752.16

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Solution

The fourth proportional to 18,117.97, 27,171.29 and 8,752.16 is: 13,125.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,117.97 : 27,171.29 = 8,752.16 : x
  2. Step 2: Convert to fraction form
    18,117.97/27,171.29 = 8,752.16/x
  3. Step 3: Cross multiply
    18,117.97x = 27,171.29 × 8,752.16
  4. Step 4: Simplify right side
    18,117.97x = 237,807,567.30
  5. Step 5: Solve for x
    x = 237,807,567.30/18,117.97
  6. Step 6: Final answer
    x = 13,125.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.