Home / 13,343.18-18,407.82-9,366.86

Finding the Fourth Proportional to 13,343.18, 18,407.82 and 9,366.86

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Solution

The fourth proportional to 13,343.18, 18,407.82 and 9,366.86 is: 12,922.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,343.18 : 18,407.82 = 9,366.86 : x
  2. Step 2: Convert to fraction form
    13,343.18/18,407.82 = 9,366.86/x
  3. Step 3: Cross multiply
    13,343.18x = 18,407.82 × 9,366.86
  4. Step 4: Simplify right side
    13,343.18x = 172,423,472.85
  5. Step 5: Solve for x
    x = 172,423,472.85/13,343.18
  6. Step 6: Final answer
    x = 12,922.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.