Home / 8,915.64-13,371.30-3,718.68

Finding the Fourth Proportional to 8,915.64, 13,371.30 and 3,718.68

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Solution

The fourth proportional to 8,915.64, 13,371.30 and 3,718.68 is: 5,577.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,915.64 : 13,371.30 = 3,718.68 : x
  2. Step 2: Convert to fraction form
    8,915.64/13,371.30 = 3,718.68/x
  3. Step 3: Cross multiply
    8,915.64x = 13,371.30 × 3,718.68
  4. Step 4: Simplify right side
    8,915.64x = 49,723,585.88
  5. Step 5: Solve for x
    x = 49,723,585.88/8,915.64
  6. Step 6: Final answer
    x = 5,577.12

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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.