Home / 15,525.72-21,425.22-8,452.02

Finding the Fourth Proportional to 15,525.72, 21,425.22 and 8,452.02

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Solution

The fourth proportional to 15,525.72, 21,425.22 and 8,452.02 is: 11,663.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,525.72 : 21,425.22 = 8,452.02 : x
  2. Step 2: Convert to fraction form
    15,525.72/21,425.22 = 8,452.02/x
  3. Step 3: Cross multiply
    15,525.72x = 21,425.22 × 8,452.02
  4. Step 4: Simplify right side
    15,525.72x = 181,086,387.94
  5. Step 5: Solve for x
    x = 181,086,387.94/15,525.72
  6. Step 6: Final answer
    x = 11,663.64

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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.