Home / 14,380.76-21,543.50-8,817.89

Finding the Fourth Proportional to 14,380.76, 21,543.50 and 8,817.89

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Solution

The fourth proportional to 14,380.76, 21,543.50 and 8,817.89 is: 13,209.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,380.76 : 21,543.50 = 8,817.89 : x
  2. Step 2: Convert to fraction form
    14,380.76/21,543.50 = 8,817.89/x
  3. Step 3: Cross multiply
    14,380.76x = 21,543.50 × 8,817.89
  4. Step 4: Simplify right side
    14,380.76x = 189,968,127.54
  5. Step 5: Solve for x
    x = 189,968,127.54/14,380.76
  6. Step 6: Final answer
    x = 13,209.88

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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.