Home / 6,613.92-9,123.60-3,923.52

Finding the Fourth Proportional to 6,613.92, 9,123.60 and 3,923.52

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Solution

The fourth proportional to 6,613.92, 9,123.60 and 3,923.52 is: 5,412.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,613.92 : 9,123.60 = 3,923.52 : x
  2. Step 2: Convert to fraction form
    6,613.92/9,123.60 = 3,923.52/x
  3. Step 3: Cross multiply
    6,613.92x = 9,123.60 × 3,923.52
  4. Step 4: Simplify right side
    6,613.92x = 35,796,627.07
  5. Step 5: Solve for x
    x = 35,796,627.07/6,613.92
  6. Step 6: Final answer
    x = 5,412.32

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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.