Home / 9,979.35-13,769.91-5,502.48

Finding the Fourth Proportional to 9,979.35, 13,769.91 and 5,502.48

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Solution

The fourth proportional to 9,979.35, 13,769.91 and 5,502.48 is: 7,592.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,979.35 : 13,769.91 = 5,502.48 : x
  2. Step 2: Convert to fraction form
    9,979.35/13,769.91 = 5,502.48/x
  3. Step 3: Cross multiply
    9,979.35x = 13,769.91 × 5,502.48
  4. Step 4: Simplify right side
    9,979.35x = 75,768,654.38
  5. Step 5: Solve for x
    x = 75,768,654.38/9,979.35
  6. Step 6: Final answer
    x = 7,592.54

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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.