Home / 8,109.58-11,174.61-5,981.74

Finding the Fourth Proportional to 8,109.58, 11,174.61 and 5,981.74

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Solution

The fourth proportional to 8,109.58, 11,174.61 and 5,981.74 is: 8,242.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,109.58 : 11,174.61 = 5,981.74 : x
  2. Step 2: Convert to fraction form
    8,109.58/11,174.61 = 5,981.74/x
  3. Step 3: Cross multiply
    8,109.58x = 11,174.61 × 5,981.74
  4. Step 4: Simplify right side
    8,109.58x = 66,843,589.29
  5. Step 5: Solve for x
    x = 66,843,589.29/8,109.58
  6. Step 6: Final answer
    x = 8,242.55

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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.