Home / 18,145.45-25,049.64-11,441.40

Finding the Fourth Proportional to 18,145.45, 25,049.64 and 11,441.40

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Solution

The fourth proportional to 18,145.45, 25,049.64 and 11,441.40 is: 15,794.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,145.45 : 25,049.64 = 11,441.40 : x
  2. Step 2: Convert to fraction form
    18,145.45/25,049.64 = 11,441.40/x
  3. Step 3: Cross multiply
    18,145.45x = 25,049.64 × 11,441.40
  4. Step 4: Simplify right side
    18,145.45x = 286,602,951.10
  5. Step 5: Solve for x
    x = 286,602,951.10/18,145.45
  6. Step 6: Final answer
    x = 15,794.76

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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.