Home / 8,147.52-11,241.36-5,164.74

Finding the Fourth Proportional to 8,147.52, 11,241.36 and 5,164.74

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Solution

The fourth proportional to 8,147.52, 11,241.36 and 5,164.74 is: 7,125.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,147.52 : 11,241.36 = 5,164.74 : x
  2. Step 2: Convert to fraction form
    8,147.52/11,241.36 = 5,164.74/x
  3. Step 3: Cross multiply
    8,147.52x = 11,241.36 × 5,164.74
  4. Step 4: Simplify right side
    8,147.52x = 58,058,701.65
  5. Step 5: Solve for x
    x = 58,058,701.65/8,147.52
  6. Step 6: Final answer
    x = 7,125.94

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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.