Home / 16,888.20-23,277.76-12,689.16

Finding the Fourth Proportional to 16,888.20, 23,277.76 and 12,689.16

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Solution

The fourth proportional to 16,888.20, 23,277.76 and 12,689.16 is: 17,490.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,888.20 : 23,277.76 = 12,689.16 : x
  2. Step 2: Convert to fraction form
    16,888.20/23,277.76 = 12,689.16/x
  3. Step 3: Cross multiply
    16,888.20x = 23,277.76 × 12,689.16
  4. Step 4: Simplify right side
    16,888.20x = 295,375,221.08
  5. Step 5: Solve for x
    x = 295,375,221.08/16,888.20
  6. Step 6: Final answer
    x = 17,490.04

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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.