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Finding the Fourth Proportional to 8,013.15, 12,019.73 and 5,104.35

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Solution

The fourth proportional to 8,013.15, 12,019.73 and 5,104.35 is: 7,656.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,013.15 : 12,019.73 = 5,104.35 : x
  2. Step 2: Convert to fraction form
    8,013.15/12,019.73 = 5,104.35/x
  3. Step 3: Cross multiply
    8,013.15x = 12,019.73 × 5,104.35
  4. Step 4: Simplify right side
    8,013.15x = 61,352,883.30
  5. Step 5: Solve for x
    x = 61,352,883.30/8,013.15
  6. Step 6: Final answer
    x = 7,656.53

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Double scale
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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.