Home / 8,147.25-11,242.49-5,758.14

Finding the Fourth Proportional to 8,147.25, 11,242.49 and 5,758.14

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Solution

The fourth proportional to 8,147.25, 11,242.49 and 5,758.14 is: 7,945.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,147.25 : 11,242.49 = 5,758.14 : x
  2. Step 2: Convert to fraction form
    8,147.25/11,242.49 = 5,758.14/x
  3. Step 3: Cross multiply
    8,147.25x = 11,242.49 × 5,758.14
  4. Step 4: Simplify right side
    8,147.25x = 64,735,802.58
  5. Step 5: Solve for x
    x = 64,735,802.58/8,147.25
  6. Step 6: Final answer
    x = 7,945.72

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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.