Home / 15,078.75-22,618.12-5,212.64

Finding the Fourth Proportional to 15,078.75, 22,618.12 and 5,212.64

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Solution

The fourth proportional to 15,078.75, 22,618.12 and 5,212.64 is: 7,818.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,078.75 : 22,618.12 = 5,212.64 : x
  2. Step 2: Convert to fraction form
    15,078.75/22,618.12 = 5,212.64/x
  3. Step 3: Cross multiply
    15,078.75x = 22,618.12 × 5,212.64
  4. Step 4: Simplify right side
    15,078.75x = 117,900,117.04
  5. Step 5: Solve for x
    x = 117,900,117.04/15,078.75
  6. Step 6: Final answer
    x = 7,818.96

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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.