Home / 10,278.11-15,414.12-5,345.07

Finding the Fourth Proportional to 10,278.11, 15,414.12 and 5,345.07

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Solution

The fourth proportional to 10,278.11, 15,414.12 and 5,345.07 is: 8,016.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,278.11 : 15,414.12 = 5,345.07 : x
  2. Step 2: Convert to fraction form
    10,278.11/15,414.12 = 5,345.07/x
  3. Step 3: Cross multiply
    10,278.11x = 15,414.12 × 5,345.07
  4. Step 4: Simplify right side
    10,278.11x = 82,389,550.39
  5. Step 5: Solve for x
    x = 82,389,550.39/10,278.11
  6. Step 6: Final answer
    x = 8,016.03

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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.