Home / 18,228.88-27,345.60-7,134.13

Finding the Fourth Proportional to 18,228.88, 27,345.60 and 7,134.13

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Solution

The fourth proportional to 18,228.88, 27,345.60 and 7,134.13 is: 10,702.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,228.88 : 27,345.60 = 7,134.13 : x
  2. Step 2: Convert to fraction form
    18,228.88/27,345.60 = 7,134.13/x
  3. Step 3: Cross multiply
    18,228.88x = 27,345.60 × 7,134.13
  4. Step 4: Simplify right side
    18,228.88x = 195,087,065.33
  5. Step 5: Solve for x
    x = 195,087,065.33/18,228.88
  6. Step 6: Final answer
    x = 10,702.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.