Home / 8,757.49-12,085.33-5,613.68

Finding the Fourth Proportional to 8,757.49, 12,085.33 and 5,613.68

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Solution

The fourth proportional to 8,757.49, 12,085.33 and 5,613.68 is: 7,746.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,757.49 : 12,085.33 = 5,613.68 : x
  2. Step 2: Convert to fraction form
    8,757.49/12,085.33 = 5,613.68/x
  3. Step 3: Cross multiply
    8,757.49x = 12,085.33 × 5,613.68
  4. Step 4: Simplify right side
    8,757.49x = 67,843,128.92
  5. Step 5: Solve for x
    x = 67,843,128.92/8,757.49
  6. Step 6: Final answer
    x = 7,746.87

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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.