Home / 8,154.10-11,236.53-5,789.62

Finding the Fourth Proportional to 8,154.10, 11,236.53 and 5,789.62

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Solution

The fourth proportional to 8,154.10, 11,236.53 and 5,789.62 is: 7,978.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,154.10 : 11,236.53 = 5,789.62 : x
  2. Step 2: Convert to fraction form
    8,154.10/11,236.53 = 5,789.62/x
  3. Step 3: Cross multiply
    8,154.10x = 11,236.53 × 5,789.62
  4. Step 4: Simplify right side
    8,154.10x = 65,055,238.82
  5. Step 5: Solve for x
    x = 65,055,238.82/8,154.10
  6. Step 6: Final answer
    x = 7,978.22

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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.