Home / 10,240.26-15,330.42-7,784.88

Finding the Fourth Proportional to 10,240.26, 15,330.42 and 7,784.88

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Solution

The fourth proportional to 10,240.26, 15,330.42 and 7,784.88 is: 11,654.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,240.26 : 15,330.42 = 7,784.88 : x
  2. Step 2: Convert to fraction form
    10,240.26/15,330.42 = 7,784.88/x
  3. Step 3: Cross multiply
    10,240.26x = 15,330.42 × 7,784.88
  4. Step 4: Simplify right side
    10,240.26x = 119,345,480.05
  5. Step 5: Solve for x
    x = 119,345,480.05/10,240.26
  6. Step 6: Final answer
    x = 11,654.54

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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.