Home / 14,221.95-21,304.38-7,084.68

Finding the Fourth Proportional to 14,221.95, 21,304.38 and 7,084.68

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Solution

The fourth proportional to 14,221.95, 21,304.38 and 7,084.68 is: 10,612.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,221.95 : 21,304.38 = 7,084.68 : x
  2. Step 2: Convert to fraction form
    14,221.95/21,304.38 = 7,084.68/x
  3. Step 3: Cross multiply
    14,221.95x = 21,304.38 × 7,084.68
  4. Step 4: Simplify right side
    14,221.95x = 150,934,714.90
  5. Step 5: Solve for x
    x = 150,934,714.90/14,221.95
  6. Step 6: Final answer
    x = 10,612.80

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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.