Home / 8,712.86-13,071.15-2,474.78

Finding the Fourth Proportional to 8,712.86, 13,071.15 and 2,474.78

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Solution

The fourth proportional to 8,712.86, 13,071.15 and 2,474.78 is: 3,712.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,712.86 : 13,071.15 = 2,474.78 : x
  2. Step 2: Convert to fraction form
    8,712.86/13,071.15 = 2,474.78/x
  3. Step 3: Cross multiply
    8,712.86x = 13,071.15 × 2,474.78
  4. Step 4: Simplify right side
    8,712.86x = 32,348,155.24
  5. Step 5: Solve for x
    x = 32,348,155.24/8,712.86
  6. Step 6: Final answer
    x = 3,712.69

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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.