Home / 8,617.24-12,931.80-3,423.52

Finding the Fourth Proportional to 8,617.24, 12,931.80 and 3,423.52

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Solution

The fourth proportional to 8,617.24, 12,931.80 and 3,423.52 is: 5,137.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,617.24 : 12,931.80 = 3,423.52 : x
  2. Step 2: Convert to fraction form
    8,617.24/12,931.80 = 3,423.52/x
  3. Step 3: Cross multiply
    8,617.24x = 12,931.80 × 3,423.52
  4. Step 4: Simplify right side
    8,617.24x = 44,272,275.94
  5. Step 5: Solve for x
    x = 44,272,275.94/8,617.24
  6. Step 6: Final answer
    x = 5,137.64

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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.