Home / 18,219.45-27,295.16-10,404.57

Finding the Fourth Proportional to 18,219.45, 27,295.16 and 10,404.57

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Solution

The fourth proportional to 18,219.45, 27,295.16 and 10,404.57 is: 15,587.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,219.45 : 27,295.16 = 10,404.57 : x
  2. Step 2: Convert to fraction form
    18,219.45/27,295.16 = 10,404.57/x
  3. Step 3: Cross multiply
    18,219.45x = 27,295.16 × 10,404.57
  4. Step 4: Simplify right side
    18,219.45x = 283,994,350.86
  5. Step 5: Solve for x
    x = 283,994,350.86/18,219.45
  6. Step 6: Final answer
    x = 15,587.43

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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.