Home / 18,655.56-25,729.92-13,195.02

Finding the Fourth Proportional to 18,655.56, 25,729.92 and 13,195.02

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Solution

The fourth proportional to 18,655.56, 25,729.92 and 13,195.02 is: 18,198.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,655.56 : 25,729.92 = 13,195.02 : x
  2. Step 2: Convert to fraction form
    18,655.56/25,729.92 = 13,195.02/x
  3. Step 3: Cross multiply
    18,655.56x = 25,729.92 × 13,195.02
  4. Step 4: Simplify right side
    18,655.56x = 339,506,809.00
  5. Step 5: Solve for x
    x = 339,506,809.00/18,655.56
  6. Step 6: Final answer
    x = 18,198.69

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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.