Home / 18,490.70-25,517.16-10,107.20

Finding the Fourth Proportional to 18,490.70, 25,517.16 and 10,107.20

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Solution

The fourth proportional to 18,490.70, 25,517.16 and 10,107.20 is: 13,947.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,490.70 : 25,517.16 = 10,107.20 : x
  2. Step 2: Convert to fraction form
    18,490.70/25,517.16 = 10,107.20/x
  3. Step 3: Cross multiply
    18,490.70x = 25,517.16 × 10,107.20
  4. Step 4: Simplify right side
    18,490.70x = 257,906,911.97
  5. Step 5: Solve for x
    x = 257,906,911.97/18,490.70
  6. Step 6: Final answer
    x = 13,947.93

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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.