Home / 18,431.32-25,438.18-10,476.11

Finding the Fourth Proportional to 18,431.32, 25,438.18 and 10,476.11

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Solution

The fourth proportional to 18,431.32, 25,438.18 and 10,476.11 is: 14,458.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,431.32 : 25,438.18 = 10,476.11 : x
  2. Step 2: Convert to fraction form
    18,431.32/25,438.18 = 10,476.11/x
  3. Step 3: Cross multiply
    18,431.32x = 25,438.18 × 10,476.11
  4. Step 4: Simplify right side
    18,431.32x = 266,493,171.88
  5. Step 5: Solve for x
    x = 266,493,171.88/18,431.32
  6. Step 6: Final answer
    x = 14,458.71

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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.