Home / 18,189.79-27,284.59-5,042.12

Finding the Fourth Proportional to 18,189.79, 27,284.59 and 5,042.12

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Solution

The fourth proportional to 18,189.79, 27,284.59 and 5,042.12 is: 7,563.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,189.79 : 27,284.59 = 5,042.12 : x
  2. Step 2: Convert to fraction form
    18,189.79/27,284.59 = 5,042.12/x
  3. Step 3: Cross multiply
    18,189.79x = 27,284.59 × 5,042.12
  4. Step 4: Simplify right side
    18,189.79x = 137,572,027.90
  5. Step 5: Solve for x
    x = 137,572,027.90/18,189.79
  6. Step 6: Final answer
    x = 7,563.15

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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.