Home / 18,329.62-25,280.40-12,666.46

Finding the Fourth Proportional to 18,329.62, 25,280.40 and 12,666.46

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Solution

The fourth proportional to 18,329.62, 25,280.40 and 12,666.46 is: 17,469.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,329.62 : 25,280.40 = 12,666.46 : x
  2. Step 2: Convert to fraction form
    18,329.62/25,280.40 = 12,666.46/x
  3. Step 3: Cross multiply
    18,329.62x = 25,280.40 × 12,666.46
  4. Step 4: Simplify right side
    18,329.62x = 320,213,175.38
  5. Step 5: Solve for x
    x = 320,213,175.38/18,329.62
  6. Step 6: Final answer
    x = 17,469.71

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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.