Home / 18,621.62-25,694.15-10,445.49

Finding the Fourth Proportional to 18,621.62, 25,694.15 and 10,445.49

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Solution

The fourth proportional to 18,621.62, 25,694.15 and 10,445.49 is: 14,412.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,621.62 : 25,694.15 = 10,445.49 : x
  2. Step 2: Convert to fraction form
    18,621.62/25,694.15 = 10,445.49/x
  3. Step 3: Cross multiply
    18,621.62x = 25,694.15 × 10,445.49
  4. Step 4: Simplify right side
    18,621.62x = 268,388,013.00
  5. Step 5: Solve for x
    x = 268,388,013.00/18,621.62
  6. Step 6: Final answer
    x = 14,412.71

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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.