Home / 9,306.96-12,843.54-5,115.30

Finding the Fourth Proportional to 9,306.96, 12,843.54 and 5,115.30

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Solution

The fourth proportional to 9,306.96, 12,843.54 and 5,115.30 is: 7,059.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,306.96 : 12,843.54 = 5,115.30 : x
  2. Step 2: Convert to fraction form
    9,306.96/12,843.54 = 5,115.30/x
  3. Step 3: Cross multiply
    9,306.96x = 12,843.54 × 5,115.30
  4. Step 4: Simplify right side
    9,306.96x = 65,698,560.16
  5. Step 5: Solve for x
    x = 65,698,560.16/9,306.96
  6. Step 6: Final answer
    x = 7,059.08

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Double scale
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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.