Home / 18,327.20-25,291.44-9,943.70

Finding the Fourth Proportional to 18,327.20, 25,291.44 and 9,943.70

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Solution

The fourth proportional to 18,327.20, 25,291.44 and 9,943.70 is: 13,722.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,327.20 : 25,291.44 = 9,943.70 : x
  2. Step 2: Convert to fraction form
    18,327.20/25,291.44 = 9,943.70/x
  3. Step 3: Cross multiply
    18,327.20x = 25,291.44 × 9,943.70
  4. Step 4: Simplify right side
    18,327.20x = 251,490,365.47
  5. Step 5: Solve for x
    x = 251,490,365.47/18,327.20
  6. Step 6: Final answer
    x = 13,722.25

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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.