Home / 12,371.13-18,549.18-4,865.72

Finding the Fourth Proportional to 12,371.13, 18,549.18 and 4,865.72

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Solution

The fourth proportional to 12,371.13, 18,549.18 and 4,865.72 is: 7,295.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,371.13 : 18,549.18 = 4,865.72 : x
  2. Step 2: Convert to fraction form
    12,371.13/18,549.18 = 4,865.72/x
  3. Step 3: Cross multiply
    12,371.13x = 18,549.18 × 4,865.72
  4. Step 4: Simplify right side
    12,371.13x = 90,255,023.36
  5. Step 5: Solve for x
    x = 90,255,023.36/12,371.13
  6. Step 6: Final answer
    x = 7,295.62

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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.