Home / 8,613.52-11,886.84-5,077.60

Finding the Fourth Proportional to 8,613.52, 11,886.84 and 5,077.60

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Solution

The fourth proportional to 8,613.52, 11,886.84 and 5,077.60 is: 7,007.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,613.52 : 11,886.84 = 5,077.60 : x
  2. Step 2: Convert to fraction form
    8,613.52/11,886.84 = 5,077.60/x
  3. Step 3: Cross multiply
    8,613.52x = 11,886.84 × 5,077.60
  4. Step 4: Simplify right side
    8,613.52x = 60,356,618.78
  5. Step 5: Solve for x
    x = 60,356,618.78/8,613.52
  6. Step 6: Final answer
    x = 7,007.20

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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.