Home / 17,930.66-26,871.39-9,147.11

Finding the Fourth Proportional to 17,930.66, 26,871.39 and 9,147.11

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Solution

The fourth proportional to 17,930.66, 26,871.39 and 9,147.11 is: 13,708.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,930.66 : 26,871.39 = 9,147.11 : x
  2. Step 2: Convert to fraction form
    17,930.66/26,871.39 = 9,147.11/x
  3. Step 3: Cross multiply
    17,930.66x = 26,871.39 × 9,147.11
  4. Step 4: Simplify right side
    17,930.66x = 245,795,425.83
  5. Step 5: Solve for x
    x = 245,795,425.83/17,930.66
  6. Step 6: Final answer
    x = 13,708.11

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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.