Home / 18,631.08-25,716.34-11,082.72

Finding the Fourth Proportional to 18,631.08, 25,716.34 and 11,082.72

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Solution

The fourth proportional to 18,631.08, 25,716.34 and 11,082.72 is: 15,297.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,631.08 : 25,716.34 = 11,082.72 : x
  2. Step 2: Convert to fraction form
    18,631.08/25,716.34 = 11,082.72/x
  3. Step 3: Cross multiply
    18,631.08x = 25,716.34 × 11,082.72
  4. Step 4: Simplify right side
    18,631.08x = 285,006,995.64
  5. Step 5: Solve for x
    x = 285,006,995.64/18,631.08
  6. Step 6: Final answer
    x = 15,297.40

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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.