Home / 18,327.12-25,291.56-9,943.68

Finding the Fourth Proportional to 18,327.12, 25,291.56 and 9,943.68

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Solution

The fourth proportional to 18,327.12, 25,291.56 and 9,943.68 is: 13,722.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,327.12 : 25,291.56 = 9,943.68 : x
  2. Step 2: Convert to fraction form
    18,327.12/25,291.56 = 9,943.68/x
  3. Step 3: Cross multiply
    18,327.12x = 25,291.56 × 9,943.68
  4. Step 4: Simplify right side
    18,327.12x = 251,491,179.34
  5. Step 5: Solve for x
    x = 251,491,179.34/18,327.12
  6. Step 6: Final answer
    x = 13,722.35

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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.