Home / 14,785.20-22,175.28-7,381.80

Finding the Fourth Proportional to 14,785.20, 22,175.28 and 7,381.80

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Solution

The fourth proportional to 14,785.20, 22,175.28 and 7,381.80 is: 11,071.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,785.20 : 22,175.28 = 7,381.80 : x
  2. Step 2: Convert to fraction form
    14,785.20/22,175.28 = 7,381.80/x
  3. Step 3: Cross multiply
    14,785.20x = 22,175.28 × 7,381.80
  4. Step 4: Simplify right side
    14,785.20x = 163,693,481.90
  5. Step 5: Solve for x
    x = 163,693,481.90/14,785.20
  6. Step 6: Final answer
    x = 11,071.44

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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.