Home / 18,239.73-25,180.34-12,947.19

Finding the Fourth Proportional to 18,239.73, 25,180.34 and 12,947.19

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Solution

The fourth proportional to 18,239.73, 25,180.34 and 12,947.19 is: 17,873.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,239.73 : 25,180.34 = 12,947.19 : x
  2. Step 2: Convert to fraction form
    18,239.73/25,180.34 = 12,947.19/x
  3. Step 3: Cross multiply
    18,239.73x = 25,180.34 × 12,947.19
  4. Step 4: Simplify right side
    18,239.73x = 326,014,737.96
  5. Step 5: Solve for x
    x = 326,014,737.96/18,239.73
  6. Step 6: Final answer
    x = 17,873.88

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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.