Home / 10,187.68-15,285.46-3,613.92

Finding the Fourth Proportional to 10,187.68, 15,285.46 and 3,613.92

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Solution

The fourth proportional to 10,187.68, 15,285.46 and 3,613.92 is: 5,422.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,187.68 : 15,285.46 = 3,613.92 : x
  2. Step 2: Convert to fraction form
    10,187.68/15,285.46 = 3,613.92/x
  3. Step 3: Cross multiply
    10,187.68x = 15,285.46 × 3,613.92
  4. Step 4: Simplify right side
    10,187.68x = 55,240,429.60
  5. Step 5: Solve for x
    x = 55,240,429.60/10,187.68
  6. Step 6: Final answer
    x = 5,422.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.