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Finding the Fourth Proportional to 16,640.20, 24,927.90 and 9,231.40

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Solution

The fourth proportional to 16,640.20, 24,927.90 and 9,231.40 is: 13,829.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,640.20 : 24,927.90 = 9,231.40 : x
  2. Step 2: Convert to fraction form
    16,640.20/24,927.90 = 9,231.40/x
  3. Step 3: Cross multiply
    16,640.20x = 24,927.90 × 9,231.40
  4. Step 4: Simplify right side
    16,640.20x = 230,119,416.06
  5. Step 5: Solve for x
    x = 230,119,416.06/16,640.20
  6. Step 6: Final answer
    x = 13,829.13

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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.