Home / 8,338.08-12,490.38-3,959.76

Finding the Fourth Proportional to 8,338.08, 12,490.38 and 3,959.76

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Solution

The fourth proportional to 8,338.08, 12,490.38 and 3,959.76 is: 5,931.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,338.08 : 12,490.38 = 3,959.76 : x
  2. Step 2: Convert to fraction form
    8,338.08/12,490.38 = 3,959.76/x
  3. Step 3: Cross multiply
    8,338.08x = 12,490.38 × 3,959.76
  4. Step 4: Simplify right side
    8,338.08x = 49,458,907.11
  5. Step 5: Solve for x
    x = 49,458,907.11/8,338.08
  6. Step 6: Final answer
    x = 5,931.69

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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.