Home / 15,084.72-20,820.24-8,798.04

Finding the Fourth Proportional to 15,084.72, 20,820.24 and 8,798.04

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Solution

The fourth proportional to 15,084.72, 20,820.24 and 8,798.04 is: 12,143.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,084.72 : 20,820.24 = 8,798.04 : x
  2. Step 2: Convert to fraction form
    15,084.72/20,820.24 = 8,798.04/x
  3. Step 3: Cross multiply
    15,084.72x = 20,820.24 × 8,798.04
  4. Step 4: Simplify right side
    15,084.72x = 183,177,304.33
  5. Step 5: Solve for x
    x = 183,177,304.33/15,084.72
  6. Step 6: Final answer
    x = 12,143.24

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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.