Home / 8,217.48-11,339.55-5,189.07

Finding the Fourth Proportional to 8,217.48, 11,339.55 and 5,189.07

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Solution

The fourth proportional to 8,217.48, 11,339.55 and 5,189.07 is: 7,160.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,217.48 : 11,339.55 = 5,189.07 : x
  2. Step 2: Convert to fraction form
    8,217.48/11,339.55 = 5,189.07/x
  3. Step 3: Cross multiply
    8,217.48x = 11,339.55 × 5,189.07
  4. Step 4: Simplify right side
    8,217.48x = 58,841,718.72
  5. Step 5: Solve for x
    x = 58,841,718.72/8,217.48
  6. Step 6: Final answer
    x = 7,160.56

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Half 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.