Home / 8,319.51-12,479.13-2,475.90

Finding the Fourth Proportional to 8,319.51, 12,479.13 and 2,475.90

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Solution

The fourth proportional to 8,319.51, 12,479.13 and 2,475.90 is: 3,713.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,319.51 : 12,479.13 = 2,475.90 : x
  2. Step 2: Convert to fraction form
    8,319.51/12,479.13 = 2,475.90/x
  3. Step 3: Cross multiply
    8,319.51x = 12,479.13 × 2,475.90
  4. Step 4: Simplify right side
    8,319.51x = 30,897,077.97
  5. Step 5: Solve for x
    x = 30,897,077.97/8,319.51
  6. Step 6: Final answer
    x = 3,713.81

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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.