Home / 14,534.43-21,780.85-8,281.53

Finding the Fourth Proportional to 14,534.43, 21,780.85 and 8,281.53

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Solution

The fourth proportional to 14,534.43, 21,780.85 and 8,281.53 is: 12,410.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,534.43 : 21,780.85 = 8,281.53 : x
  2. Step 2: Convert to fraction form
    14,534.43/21,780.85 = 8,281.53/x
  3. Step 3: Cross multiply
    14,534.43x = 21,780.85 × 8,281.53
  4. Step 4: Simplify right side
    14,534.43x = 180,378,721.29
  5. Step 5: Solve for x
    x = 180,378,721.29/14,534.43
  6. Step 6: Final answer
    x = 12,410.45

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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.