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Finding the Fourth Proportional to 8,353.71, 12,525.70 and 3,159.99

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Solution

The fourth proportional to 8,353.71, 12,525.70 and 3,159.99 is: 4,738.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,353.71 : 12,525.70 = 3,159.99 : x
  2. Step 2: Convert to fraction form
    8,353.71/12,525.70 = 3,159.99/x
  3. Step 3: Cross multiply
    8,353.71x = 12,525.70 × 3,159.99
  4. Step 4: Simplify right side
    8,353.71x = 39,581,086.74
  5. Step 5: Solve for x
    x = 39,581,086.74/8,353.71
  6. Step 6: Final answer
    x = 4,738.14

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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.