Home / 12,098.67-18,143.40-7,169.70

Finding the Fourth Proportional to 12,098.67, 18,143.40 and 7,169.70

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Solution

The fourth proportional to 12,098.67, 18,143.40 and 7,169.70 is: 10,751.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,098.67 : 18,143.40 = 7,169.70 : x
  2. Step 2: Convert to fraction form
    12,098.67/18,143.40 = 7,169.70/x
  3. Step 3: Cross multiply
    12,098.67x = 18,143.40 × 7,169.70
  4. Step 4: Simplify right side
    12,098.67x = 130,082,734.98
  5. Step 5: Solve for x
    x = 130,082,734.98/12,098.67
  6. Step 6: Final answer
    x = 10,751.82

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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.