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Finding the Fourth Proportional to 8,440.74, 12,660.30 and 2,597.40

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Solution

The fourth proportional to 8,440.74, 12,660.30 and 2,597.40 is: 3,895.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,440.74 : 12,660.30 = 2,597.40 : x
  2. Step 2: Convert to fraction form
    8,440.74/12,660.30 = 2,597.40/x
  3. Step 3: Cross multiply
    8,440.74x = 12,660.30 × 2,597.40
  4. Step 4: Simplify right side
    8,440.74x = 32,883,863.22
  5. Step 5: Solve for x
    x = 32,883,863.22/8,440.74
  6. Step 6: Final answer
    x = 3,895.85

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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.