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Finding the Fourth Proportional to 8,624.71, 12,927.77 and 4,172.97

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Solution

The fourth proportional to 8,624.71, 12,927.77 and 4,172.97 is: 6,254.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,624.71 : 12,927.77 = 4,172.97 : x
  2. Step 2: Convert to fraction form
    8,624.71/12,927.77 = 4,172.97/x
  3. Step 3: Cross multiply
    8,624.71x = 12,927.77 × 4,172.97
  4. Step 4: Simplify right side
    8,624.71x = 53,947,239.64
  5. Step 5: Solve for x
    x = 53,947,239.64/8,624.71
  6. Step 6: Final answer
    x = 6,254.96

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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.