Home / 18,118.91-25,004.35-10,947.83

Finding the Fourth Proportional to 18,118.91, 25,004.35 and 10,947.83

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Solution

The fourth proportional to 18,118.91, 25,004.35 and 10,947.83 is: 15,108.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,118.91 : 25,004.35 = 10,947.83 : x
  2. Step 2: Convert to fraction form
    18,118.91/25,004.35 = 10,947.83/x
  3. Step 3: Cross multiply
    18,118.91x = 25,004.35 × 10,947.83
  4. Step 4: Simplify right side
    18,118.91x = 273,743,373.06
  5. Step 5: Solve for x
    x = 273,743,373.06/18,118.91
  6. Step 6: Final answer
    x = 15,108.16

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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.