Home / 8,342.87-12,516.35-2,499.47

Finding the Fourth Proportional to 8,342.87, 12,516.35 and 2,499.47

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Solution

The fourth proportional to 8,342.87, 12,516.35 and 2,499.47 is: 3,749.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,342.87 : 12,516.35 = 2,499.47 : x
  2. Step 2: Convert to fraction form
    8,342.87/12,516.35 = 2,499.47/x
  3. Step 3: Cross multiply
    8,342.87x = 12,516.35 × 2,499.47
  4. Step 4: Simplify right side
    8,342.87x = 31,284,213.19
  5. Step 5: Solve for x
    x = 31,284,213.19/8,342.87
  6. Step 6: Final answer
    x = 3,749.82

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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.