Home / 14,613.74-20,162.12-8,239.53

Finding the Fourth Proportional to 14,613.74, 20,162.12 and 8,239.53

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Solution

The fourth proportional to 14,613.74, 20,162.12 and 8,239.53 is: 11,367.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,613.74 : 20,162.12 = 8,239.53 : x
  2. Step 2: Convert to fraction form
    14,613.74/20,162.12 = 8,239.53/x
  3. Step 3: Cross multiply
    14,613.74x = 20,162.12 × 8,239.53
  4. Step 4: Simplify right side
    14,613.74x = 166,126,392.60
  5. Step 5: Solve for x
    x = 166,126,392.60/14,613.74
  6. Step 6: Final answer
    x = 11,367.82

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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.