Home / 18,947.22-28,412.19-9,091.14

Finding the Fourth Proportional to 18,947.22, 28,412.19 and 9,091.14

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Solution

The fourth proportional to 18,947.22, 28,412.19 and 9,091.14 is: 13,632.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,947.22 : 28,412.19 = 9,091.14 : x
  2. Step 2: Convert to fraction form
    18,947.22/28,412.19 = 9,091.14/x
  3. Step 3: Cross multiply
    18,947.22x = 28,412.19 × 9,091.14
  4. Step 4: Simplify right side
    18,947.22x = 258,299,197.00
  5. Step 5: Solve for x
    x = 258,299,197.00/18,947.22
  6. Step 6: Final answer
    x = 13,632.56

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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.