Home / 8,173.92-11,281.92-5,187.36

Finding the Fourth Proportional to 8,173.92, 11,281.92 and 5,187.36

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Solution

The fourth proportional to 8,173.92, 11,281.92 and 5,187.36 is: 7,159.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,173.92 : 11,281.92 = 5,187.36 : x
  2. Step 2: Convert to fraction form
    8,173.92/11,281.92 = 5,187.36/x
  3. Step 3: Cross multiply
    8,173.92x = 11,281.92 × 5,187.36
  4. Step 4: Simplify right side
    8,173.92x = 58,523,380.53
  5. Step 5: Solve for x
    x = 58,523,380.53/8,173.92
  6. Step 6: Final answer
    x = 7,159.77

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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.