Home / 10,993.11-15,171.48-6,278.91

Finding the Fourth Proportional to 10,993.11, 15,171.48 and 6,278.91

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Solution

The fourth proportional to 10,993.11, 15,171.48 and 6,278.91 is: 8,665.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,993.11 : 15,171.48 = 6,278.91 : x
  2. Step 2: Convert to fraction form
    10,993.11/15,171.48 = 6,278.91/x
  3. Step 3: Cross multiply
    10,993.11x = 15,171.48 × 6,278.91
  4. Step 4: Simplify right side
    10,993.11x = 95,260,357.49
  5. Step 5: Solve for x
    x = 95,260,357.49/10,993.11
  6. Step 6: Final answer
    x = 8,665.46

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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.