Home / 14,658.62-20,229.26-8,689.32

Finding the Fourth Proportional to 14,658.62, 20,229.26 and 8,689.32

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Solution

The fourth proportional to 14,658.62, 20,229.26 and 8,689.32 is: 11,991.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,658.62 : 20,229.26 = 8,689.32 : x
  2. Step 2: Convert to fraction form
    14,658.62/20,229.26 = 8,689.32/x
  3. Step 3: Cross multiply
    14,658.62x = 20,229.26 × 8,689.32
  4. Step 4: Simplify right side
    14,658.62x = 175,778,470.06
  5. Step 5: Solve for x
    x = 175,778,470.06/14,658.62
  6. Step 6: Final answer
    x = 11,991.48

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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.