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Finding the Fourth Proportional to 12,613.73, 18,920.59 and 5,948.68

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Solution

The fourth proportional to 12,613.73, 18,920.59 and 5,948.68 is: 8,923.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,613.73 : 18,920.59 = 5,948.68 : x
  2. Step 2: Convert to fraction form
    12,613.73/18,920.59 = 5,948.68/x
  3. Step 3: Cross multiply
    12,613.73x = 18,920.59 × 5,948.68
  4. Step 4: Simplify right side
    12,613.73x = 112,552,425.85
  5. Step 5: Solve for x
    x = 112,552,425.85/12,613.73
  6. Step 6: Final answer
    x = 8,923.01

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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.