Home / 14,211.86-19,613.54-7,839.70

Finding the Fourth Proportional to 14,211.86, 19,613.54 and 7,839.70

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Solution

The fourth proportional to 14,211.86, 19,613.54 and 7,839.70 is: 10,819.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,211.86 : 19,613.54 = 7,839.70 : x
  2. Step 2: Convert to fraction form
    14,211.86/19,613.54 = 7,839.70/x
  3. Step 3: Cross multiply
    14,211.86x = 19,613.54 × 7,839.70
  4. Step 4: Simplify right side
    14,211.86x = 153,764,269.54
  5. Step 5: Solve for x
    x = 153,764,269.54/14,211.86
  6. Step 6: Final answer
    x = 10,819.43

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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.