Home / 9,079.40-13,619.10-9,021.80

Finding the Fourth Proportional to 9,079.40, 13,619.10 and 9,021.80

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Solution

The fourth proportional to 9,079.40, 13,619.10 and 9,021.80 is: 13,532.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,079.40 : 13,619.10 = 9,021.80 : x
  2. Step 2: Convert to fraction form
    9,079.40/13,619.10 = 9,021.80/x
  3. Step 3: Cross multiply
    9,079.40x = 13,619.10 × 9,021.80
  4. Step 4: Simplify right side
    9,079.40x = 122,868,796.38
  5. Step 5: Solve for x
    x = 122,868,796.38/9,079.40
  6. Step 6: Final answer
    x = 13,532.70

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Similar ratio
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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.