Home / 8,717.61-13,078.27-2,479.53

Finding the Fourth Proportional to 8,717.61, 13,078.27 and 2,479.53

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Solution

The fourth proportional to 8,717.61, 13,078.27 and 2,479.53 is: 3,719.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,717.61 : 13,078.27 = 2,479.53 : x
  2. Step 2: Convert to fraction form
    8,717.61/13,078.27 = 2,479.53/x
  3. Step 3: Cross multiply
    8,717.61x = 13,078.27 × 2,479.53
  4. Step 4: Simplify right side
    8,717.61x = 32,427,962.81
  5. Step 5: Solve for x
    x = 32,427,962.81/8,717.61
  6. Step 6: Final answer
    x = 3,719.82

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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.