Home / 8,757.56-12,085.44-5,613.75

Finding the Fourth Proportional to 8,757.56, 12,085.44 and 5,613.75

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Solution

The fourth proportional to 8,757.56, 12,085.44 and 5,613.75 is: 7,746.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,757.56 : 12,085.44 = 5,613.75 : x
  2. Step 2: Convert to fraction form
    8,757.56/12,085.44 = 5,613.75/x
  3. Step 3: Cross multiply
    8,757.56x = 12,085.44 × 5,613.75
  4. Step 4: Simplify right side
    8,757.56x = 67,844,617.75
  5. Step 5: Solve for x
    x = 67,844,617.75/8,757.56
  6. Step 6: Final answer
    x = 7,746.98

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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.