Home / 18,278.22-25,225.11-10,317.54

Finding the Fourth Proportional to 18,278.22, 25,225.11 and 10,317.54

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Solution

The fourth proportional to 18,278.22, 25,225.11 and 10,317.54 is: 14,238.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,278.22 : 25,225.11 = 10,317.54 : x
  2. Step 2: Convert to fraction form
    18,278.22/25,225.11 = 10,317.54/x
  3. Step 3: Cross multiply
    18,278.22x = 25,225.11 × 10,317.54
  4. Step 4: Simplify right side
    18,278.22x = 260,261,081.43
  5. Step 5: Solve for x
    x = 260,261,081.43/18,278.22
  6. Step 6: Final answer
    x = 14,238.86

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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.