Home / 18,427.56-25,422.78-11,341.68

Finding the Fourth Proportional to 18,427.56, 25,422.78 and 11,341.68

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Solution

The fourth proportional to 18,427.56, 25,422.78 and 11,341.68 is: 15,647.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,427.56 : 25,422.78 = 11,341.68 : x
  2. Step 2: Convert to fraction form
    18,427.56/25,422.78 = 11,341.68/x
  3. Step 3: Cross multiply
    18,427.56x = 25,422.78 × 11,341.68
  4. Step 4: Simplify right side
    18,427.56x = 288,337,035.47
  5. Step 5: Solve for x
    x = 288,337,035.47/18,427.56
  6. Step 6: Final answer
    x = 15,647.05

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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.