Home / 13,385.43-20,079.51-4,618.29

Finding the Fourth Proportional to 13,385.43, 20,079.51 and 4,618.29

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Solution

The fourth proportional to 13,385.43, 20,079.51 and 4,618.29 is: 6,927.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,385.43 : 20,079.51 = 4,618.29 : x
  2. Step 2: Convert to fraction form
    13,385.43/20,079.51 = 4,618.29/x
  3. Step 3: Cross multiply
    13,385.43x = 20,079.51 × 4,618.29
  4. Step 4: Simplify right side
    13,385.43x = 92,733,000.24
  5. Step 5: Solve for x
    x = 92,733,000.24/13,385.43
  6. Step 6: Final answer
    x = 6,927.91

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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.