Home / 14,613.76-21,920.43-13,679.83

Finding the Fourth Proportional to 14,613.76, 21,920.43 and 13,679.83

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Solution

The fourth proportional to 14,613.76, 21,920.43 and 13,679.83 is: 20,519.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,613.76 : 21,920.43 = 13,679.83 : x
  2. Step 2: Convert to fraction form
    14,613.76/21,920.43 = 13,679.83/x
  3. Step 3: Cross multiply
    14,613.76x = 21,920.43 × 13,679.83
  4. Step 4: Simplify right side
    14,613.76x = 299,867,646.32
  5. Step 5: Solve for x
    x = 299,867,646.32/14,613.76
  6. Step 6: Final answer
    x = 20,519.55

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1.5x scale

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.