Home / 8,170.91-11,269.68-5,657.23

Finding the Fourth Proportional to 8,170.91, 11,269.68 and 5,657.23

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Solution

The fourth proportional to 8,170.91, 11,269.68 and 5,657.23 is: 7,802.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,170.91 : 11,269.68 = 5,657.23 : x
  2. Step 2: Convert to fraction form
    8,170.91/11,269.68 = 5,657.23/x
  3. Step 3: Cross multiply
    8,170.91x = 11,269.68 × 5,657.23
  4. Step 4: Simplify right side
    8,170.91x = 63,755,196.48
  5. Step 5: Solve for x
    x = 63,755,196.48/8,170.91
  6. Step 6: Final answer
    x = 7,802.70

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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.