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Finding the Fourth Proportional to 12,790.59, 17,650.92 and 7,125.04

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Solution

The fourth proportional to 12,790.59, 17,650.92 and 7,125.04 is: 9,832.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,790.59 : 17,650.92 = 7,125.04 : x
  2. Step 2: Convert to fraction form
    12,790.59/17,650.92 = 7,125.04/x
  3. Step 3: Cross multiply
    12,790.59x = 17,650.92 × 7,125.04
  4. Step 4: Simplify right side
    12,790.59x = 125,763,511.04
  5. Step 5: Solve for x
    x = 125,763,511.04/12,790.59
  6. Step 6: Final answer
    x = 9,832.50

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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.