Home / 18,861.17-28,291.98-5,714.12

Finding the Fourth Proportional to 18,861.17, 28,291.98 and 5,714.12

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Solution

The fourth proportional to 18,861.17, 28,291.98 and 5,714.12 is: 8,571.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,861.17 : 28,291.98 = 5,714.12 : x
  2. Step 2: Convert to fraction form
    18,861.17/28,291.98 = 5,714.12/x
  3. Step 3: Cross multiply
    18,861.17x = 28,291.98 × 5,714.12
  4. Step 4: Simplify right side
    18,861.17x = 161,663,627.30
  5. Step 5: Solve for x
    x = 161,663,627.30/18,861.17
  6. Step 6: Final answer
    x = 8,571.24

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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.