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Finding the Fourth Proportional to 8,597.40, 12,892.90 and 2,439.32

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Solution

The fourth proportional to 8,597.40, 12,892.90 and 2,439.32 is: 3,658.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,597.40 : 12,892.90 = 2,439.32 : x
  2. Step 2: Convert to fraction form
    8,597.40/12,892.90 = 2,439.32/x
  3. Step 3: Cross multiply
    8,597.40x = 12,892.90 × 2,439.32
  4. Step 4: Simplify right side
    8,597.40x = 31,449,908.83
  5. Step 5: Solve for x
    x = 31,449,908.83/8,597.40
  6. Step 6: Final answer
    x = 3,658.07

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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.