Home / 13,384.11-18,471.38-7,794.75

Finding the Fourth Proportional to 13,384.11, 18,471.38 and 7,794.75

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Solution

The fourth proportional to 13,384.11, 18,471.38 and 7,794.75 is: 10,757.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,384.11 : 18,471.38 = 7,794.75 : x
  2. Step 2: Convert to fraction form
    13,384.11/18,471.38 = 7,794.75/x
  3. Step 3: Cross multiply
    13,384.11x = 18,471.38 × 7,794.75
  4. Step 4: Simplify right side
    13,384.11x = 143,979,750.28
  5. Step 5: Solve for x
    x = 143,979,750.28/13,384.11
  6. Step 6: Final answer
    x = 10,757.51

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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.