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Finding the Fourth Proportional to 8,575.47, 12,859.99 and 2,951.55

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Solution

The fourth proportional to 8,575.47, 12,859.99 and 2,951.55 is: 4,426.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,575.47 : 12,859.99 = 2,951.55 : x
  2. Step 2: Convert to fraction form
    8,575.47/12,859.99 = 2,951.55/x
  3. Step 3: Cross multiply
    8,575.47x = 12,859.99 × 2,951.55
  4. Step 4: Simplify right side
    8,575.47x = 37,956,903.48
  5. Step 5: Solve for x
    x = 37,956,903.48/8,575.47
  6. Step 6: Final answer
    x = 4,426.22

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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.