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Finding the Fourth Proportional to 8,503.12, 12,753.84 and 2,659.56

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Solution

The fourth proportional to 8,503.12, 12,753.84 and 2,659.56 is: 3,989.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,503.12 : 12,753.84 = 2,659.56 : x
  2. Step 2: Convert to fraction form
    8,503.12/12,753.84 = 2,659.56/x
  3. Step 3: Cross multiply
    8,503.12x = 12,753.84 × 2,659.56
  4. Step 4: Simplify right side
    8,503.12x = 33,919,602.71
  5. Step 5: Solve for x
    x = 33,919,602.71/8,503.12
  6. Step 6: Final answer
    x = 3,989.08

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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.