Home / 6,613.25-9,130.59-4,378.86

Finding the Fourth Proportional to 6,613.25, 9,130.59 and 4,378.86

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Solution

The fourth proportional to 6,613.25, 9,130.59 and 4,378.86 is: 6,045.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,613.25 : 9,130.59 = 4,378.86 : x
  2. Step 2: Convert to fraction form
    6,613.25/9,130.59 = 4,378.86/x
  3. Step 3: Cross multiply
    6,613.25x = 9,130.59 × 4,378.86
  4. Step 4: Simplify right side
    6,613.25x = 39,981,575.33
  5. Step 5: Solve for x
    x = 39,981,575.33/6,613.25
  6. Step 6: Final answer
    x = 6,045.68

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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.