Home / 18,471.30-25,490.26-10,087.80

Finding the Fourth Proportional to 18,471.30, 25,490.26 and 10,087.80

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Solution

The fourth proportional to 18,471.30, 25,490.26 and 10,087.80 is: 13,921.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,471.30 : 25,490.26 = 10,087.80 : x
  2. Step 2: Convert to fraction form
    18,471.30/25,490.26 = 10,087.80/x
  3. Step 3: Cross multiply
    18,471.30x = 25,490.26 × 10,087.80
  4. Step 4: Simplify right side
    18,471.30x = 257,140,644.83
  5. Step 5: Solve for x
    x = 257,140,644.83/18,471.30
  6. Step 6: Final answer
    x = 13,921.09

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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.