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Finding the Fourth Proportional to 12,490.83, 17,234.15 and 7,452.99

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Solution

The fourth proportional to 12,490.83, 17,234.15 and 7,452.99 is: 10,283.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,490.83 : 17,234.15 = 7,452.99 : x
  2. Step 2: Convert to fraction form
    12,490.83/17,234.15 = 7,452.99/x
  3. Step 3: Cross multiply
    12,490.83x = 17,234.15 × 7,452.99
  4. Step 4: Simplify right side
    12,490.83x = 128,445,910.34
  5. Step 5: Solve for x
    x = 128,445,910.34/12,490.83
  6. Step 6: Final answer
    x = 10,283.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.