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Finding the Fourth Proportional to 8,437.42, 12,656.11 and 4,687.44

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Solution

The fourth proportional to 8,437.42, 12,656.11 and 4,687.44 is: 7,031.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,437.42 : 12,656.11 = 4,687.44 : x
  2. Step 2: Convert to fraction form
    8,437.42/12,656.11 = 4,687.44/x
  3. Step 3: Cross multiply
    8,437.42x = 12,656.11 × 4,687.44
  4. Step 4: Simplify right side
    8,437.42x = 59,324,763.88
  5. Step 5: Solve for x
    x = 59,324,763.88/8,437.42
  6. Step 6: Final answer
    x = 7,031.15

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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.