Home / 15,641.62-21,585.22-8,568.09

Finding the Fourth Proportional to 15,641.62, 21,585.22 and 8,568.09

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Solution

The fourth proportional to 15,641.62, 21,585.22 and 8,568.09 is: 11,823.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,641.62 : 21,585.22 = 8,568.09 : x
  2. Step 2: Convert to fraction form
    15,641.62/21,585.22 = 8,568.09/x
  3. Step 3: Cross multiply
    15,641.62x = 21,585.22 × 8,568.09
  4. Step 4: Simplify right side
    15,641.62x = 184,944,086.21
  5. Step 5: Solve for x
    x = 184,944,086.21/15,641.62
  6. Step 6: Final answer
    x = 11,823.85

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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.