Home / 9,174.48-12,660.80-4,982.72

Finding the Fourth Proportional to 9,174.48, 12,660.80 and 4,982.72

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Solution

The fourth proportional to 9,174.48, 12,660.80 and 4,982.72 is: 6,876.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,174.48 : 12,660.80 = 4,982.72 : x
  2. Step 2: Convert to fraction form
    9,174.48/12,660.80 = 4,982.72/x
  3. Step 3: Cross multiply
    9,174.48x = 12,660.80 × 4,982.72
  4. Step 4: Simplify right side
    9,174.48x = 63,085,221.38
  5. Step 5: Solve for x
    x = 63,085,221.38/9,174.48
  6. Step 6: Final answer
    x = 6,876.16

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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.