Home / 18,287.88-25,237.76-10,331.28

Finding the Fourth Proportional to 18,287.88, 25,237.76 and 10,331.28

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Solution

The fourth proportional to 18,287.88, 25,237.76 and 10,331.28 is: 14,257.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,287.88 : 25,237.76 = 10,331.28 : x
  2. Step 2: Convert to fraction form
    18,287.88/25,237.76 = 10,331.28/x
  3. Step 3: Cross multiply
    18,287.88x = 25,237.76 × 10,331.28
  4. Step 4: Simplify right side
    18,287.88x = 260,738,365.13
  5. Step 5: Solve for x
    x = 260,738,365.13/18,287.88
  6. Step 6: Final answer
    x = 14,257.44

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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.