Home / 11,458.38-15,813.18-6,424.21

Finding the Fourth Proportional to 11,458.38, 15,813.18 and 6,424.21

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Solution

The fourth proportional to 11,458.38, 15,813.18 and 6,424.21 is: 8,865.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,458.38 : 15,813.18 = 6,424.21 : x
  2. Step 2: Convert to fraction form
    11,458.38/15,813.18 = 6,424.21/x
  3. Step 3: Cross multiply
    11,458.38x = 15,813.18 × 6,424.21
  4. Step 4: Simplify right side
    11,458.38x = 101,587,189.09
  5. Step 5: Solve for x
    x = 101,587,189.09/11,458.38
  6. Step 6: Final answer
    x = 8,865.76

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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.