Home / 18,182.88-27,285.12-7,090.74

Finding the Fourth Proportional to 18,182.88, 27,285.12 and 7,090.74

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Solution

The fourth proportional to 18,182.88, 27,285.12 and 7,090.74 is: 10,640.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,182.88 : 27,285.12 = 7,090.74 : x
  2. Step 2: Convert to fraction form
    18,182.88/27,285.12 = 7,090.74/x
  3. Step 3: Cross multiply
    18,182.88x = 27,285.12 × 7,090.74
  4. Step 4: Simplify right side
    18,182.88x = 193,471,691.79
  5. Step 5: Solve for x
    x = 193,471,691.79/18,182.88
  6. Step 6: Final answer
    x = 10,640.32

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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.