Home / 11,079.60-16,619.40-7,580.40

Finding the Fourth Proportional to 11,079.60, 16,619.40 and 7,580.40

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Solution

The fourth proportional to 11,079.60, 16,619.40 and 7,580.40 is: 11,370.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,079.60 : 16,619.40 = 7,580.40 : x
  2. Step 2: Convert to fraction form
    11,079.60/16,619.40 = 7,580.40/x
  3. Step 3: Cross multiply
    11,079.60x = 16,619.40 × 7,580.40
  4. Step 4: Simplify right side
    11,079.60x = 125,981,699.76
  5. Step 5: Solve for x
    x = 125,981,699.76/11,079.60
  6. Step 6: Final answer
    x = 11,370.60

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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.