Home / 8,679.10-11,976.30-5,141.62

Finding the Fourth Proportional to 8,679.10, 11,976.30 and 5,141.62

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Solution

The fourth proportional to 8,679.10, 11,976.30 and 5,141.62 is: 7,094.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,679.10 : 11,976.30 = 5,141.62 : x
  2. Step 2: Convert to fraction form
    8,679.10/11,976.30 = 5,141.62/x
  3. Step 3: Cross multiply
    8,679.10x = 11,976.30 × 5,141.62
  4. Step 4: Simplify right side
    8,679.10x = 61,577,583.61
  5. Step 5: Solve for x
    x = 61,577,583.61/8,679.10
  6. Step 6: Final answer
    x = 7,094.93

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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.