Home / 15,618.38-21,553.71-8,544.80

Finding the Fourth Proportional to 15,618.38, 21,553.71 and 8,544.80

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Solution

The fourth proportional to 15,618.38, 21,553.71 and 8,544.80 is: 11,792.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,618.38 : 21,553.71 = 8,544.80 : x
  2. Step 2: Convert to fraction form
    15,618.38/21,553.71 = 8,544.80/x
  3. Step 3: Cross multiply
    15,618.38x = 21,553.71 × 8,544.80
  4. Step 4: Simplify right side
    15,618.38x = 184,172,141.21
  5. Step 5: Solve for x
    x = 184,172,141.21/15,618.38
  6. Step 6: Final answer
    x = 11,792.01

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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.