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Finding the Fourth Proportional to 8,597.70, 12,897.36 and 4,439.70

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Solution

The fourth proportional to 8,597.70, 12,897.36 and 4,439.70 is: 6,659.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,597.70 : 12,897.36 = 4,439.70 : x
  2. Step 2: Convert to fraction form
    8,597.70/12,897.36 = 4,439.70/x
  3. Step 3: Cross multiply
    8,597.70x = 12,897.36 × 4,439.70
  4. Step 4: Simplify right side
    8,597.70x = 57,260,409.19
  5. Step 5: Solve for x
    x = 57,260,409.19/8,597.70
  6. Step 6: Final answer
    x = 6,659.97

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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.