Home / 18,215.24-25,137.48-10,257.75

Finding the Fourth Proportional to 18,215.24, 25,137.48 and 10,257.75

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Solution

The fourth proportional to 18,215.24, 25,137.48 and 10,257.75 is: 14,155.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,215.24 : 25,137.48 = 10,257.75 : x
  2. Step 2: Convert to fraction form
    18,215.24/25,137.48 = 10,257.75/x
  3. Step 3: Cross multiply
    18,215.24x = 25,137.48 × 10,257.75
  4. Step 4: Simplify right side
    18,215.24x = 257,853,985.47
  5. Step 5: Solve for x
    x = 257,853,985.47/18,215.24
  6. Step 6: Final answer
    x = 14,155.95

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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.