Home / 18,363.22-27,544.19-5,215.55

Finding the Fourth Proportional to 18,363.22, 27,544.19 and 5,215.55

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Solution

The fourth proportional to 18,363.22, 27,544.19 and 5,215.55 is: 7,823.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,363.22 : 27,544.19 = 5,215.55 : x
  2. Step 2: Convert to fraction form
    18,363.22/27,544.19 = 5,215.55/x
  3. Step 3: Cross multiply
    18,363.22x = 27,544.19 × 5,215.55
  4. Step 4: Simplify right side
    18,363.22x = 143,658,074.08
  5. Step 5: Solve for x
    x = 143,658,074.08/18,363.22
  6. Step 6: Final answer
    x = 7,823.14

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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.