Home / 12,440.16-18,657.36-3,672.72

Finding the Fourth Proportional to 12,440.16, 18,657.36 and 3,672.72

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Solution

The fourth proportional to 12,440.16, 18,657.36 and 3,672.72 is: 5,508.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,440.16 : 18,657.36 = 3,672.72 : x
  2. Step 2: Convert to fraction form
    12,440.16/18,657.36 = 3,672.72/x
  3. Step 3: Cross multiply
    12,440.16x = 18,657.36 × 3,672.72
  4. Step 4: Simplify right side
    12,440.16x = 68,523,259.22
  5. Step 5: Solve for x
    x = 68,523,259.22/12,440.16
  6. Step 6: Final answer
    x = 5,508.23

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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.