Home / 15,400.24-21,247.50-9,425.68

Finding the Fourth Proportional to 15,400.24, 21,247.50 and 9,425.68

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Solution

The fourth proportional to 15,400.24, 21,247.50 and 9,425.68 is: 13,004.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,400.24 : 21,247.50 = 9,425.68 : x
  2. Step 2: Convert to fraction form
    15,400.24/21,247.50 = 9,425.68/x
  3. Step 3: Cross multiply
    15,400.24x = 21,247.50 × 9,425.68
  4. Step 4: Simplify right side
    15,400.24x = 200,272,135.80
  5. Step 5: Solve for x
    x = 200,272,135.80/15,400.24
  6. Step 6: Final answer
    x = 13,004.48

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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.