Home / 14,189.30-21,251.55-8,357.30

Finding the Fourth Proportional to 14,189.30, 21,251.55 and 8,357.30

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Solution

The fourth proportional to 14,189.30, 21,251.55 and 8,357.30 is: 12,516.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,189.30 : 21,251.55 = 8,357.30 : x
  2. Step 2: Convert to fraction form
    14,189.30/21,251.55 = 8,357.30/x
  3. Step 3: Cross multiply
    14,189.30x = 21,251.55 × 8,357.30
  4. Step 4: Simplify right side
    14,189.30x = 177,605,578.82
  5. Step 5: Solve for x
    x = 177,605,578.82/14,189.30
  6. Step 6: Final answer
    x = 12,516.87

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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.