Home / 18,747.18-25,871.26-10,249.20

Finding the Fourth Proportional to 18,747.18, 25,871.26 and 10,249.20

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Solution

The fourth proportional to 18,747.18, 25,871.26 and 10,249.20 is: 14,143.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,747.18 : 25,871.26 = 10,249.20 : x
  2. Step 2: Convert to fraction form
    18,747.18/25,871.26 = 10,249.20/x
  3. Step 3: Cross multiply
    18,747.18x = 25,871.26 × 10,249.20
  4. Step 4: Simplify right side
    18,747.18x = 265,159,717.99
  5. Step 5: Solve for x
    x = 265,159,717.99/18,747.18
  6. Step 6: Final answer
    x = 14,143.98

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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.