Home / 18,427.16-25,429.49-10,469.40

Finding the Fourth Proportional to 18,427.16, 25,429.49 and 10,469.40

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Solution

The fourth proportional to 18,427.16, 25,429.49 and 10,469.40 is: 14,447.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,427.16 : 25,429.49 = 10,469.40 : x
  2. Step 2: Convert to fraction form
    18,427.16/25,429.49 = 10,469.40/x
  3. Step 3: Cross multiply
    18,427.16x = 25,429.49 × 10,469.40
  4. Step 4: Simplify right side
    18,427.16x = 266,231,450.26
  5. Step 5: Solve for x
    x = 266,231,450.26/18,427.16
  6. Step 6: Final answer
    x = 14,447.78

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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.