Home / 18,219.20-27,294.78-10,404.32

Finding the Fourth Proportional to 18,219.20, 27,294.78 and 10,404.32

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Solution

The fourth proportional to 18,219.20, 27,294.78 and 10,404.32 is: 15,587.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,219.20 : 27,294.78 = 10,404.32 : x
  2. Step 2: Convert to fraction form
    18,219.20/27,294.78 = 10,404.32/x
  3. Step 3: Cross multiply
    18,219.20x = 27,294.78 × 10,404.32
  4. Step 4: Simplify right side
    18,219.20x = 283,983,625.45
  5. Step 5: Solve for x
    x = 283,983,625.45/18,219.20
  6. Step 6: Final answer
    x = 15,587.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.