Home / 8,160.06-11,259.81-5,170.62

Finding the Fourth Proportional to 8,160.06, 11,259.81 and 5,170.62

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Solution

The fourth proportional to 8,160.06, 11,259.81 and 5,170.62 is: 7,134.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,160.06 : 11,259.81 = 5,170.62 : x
  2. Step 2: Convert to fraction form
    8,160.06/11,259.81 = 5,170.62/x
  3. Step 3: Cross multiply
    8,160.06x = 11,259.81 × 5,170.62
  4. Step 4: Simplify right side
    8,160.06x = 58,220,198.78
  5. Step 5: Solve for x
    x = 58,220,198.78/8,160.06
  6. Step 6: Final answer
    x = 7,134.78

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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.