Home / 8,316.72-12,471.40-3,118.95

Finding the Fourth Proportional to 8,316.72, 12,471.40 and 3,118.95

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Solution

The fourth proportional to 8,316.72, 12,471.40 and 3,118.95 is: 4,677.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,316.72 : 12,471.40 = 3,118.95 : x
  2. Step 2: Convert to fraction form
    8,316.72/12,471.40 = 3,118.95/x
  3. Step 3: Cross multiply
    8,316.72x = 12,471.40 × 3,118.95
  4. Step 4: Simplify right side
    8,316.72x = 38,897,673.03
  5. Step 5: Solve for x
    x = 38,897,673.03/8,316.72
  6. Step 6: Final answer
    x = 4,677.04

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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.