Home / 18,665.30-25,757.89-10,281.62

Finding the Fourth Proportional to 18,665.30, 25,757.89 and 10,281.62

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Solution

The fourth proportional to 18,665.30, 25,757.89 and 10,281.62 is: 14,188.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,665.30 : 25,757.89 = 10,281.62 : x
  2. Step 2: Convert to fraction form
    18,665.30/25,757.89 = 10,281.62/x
  3. Step 3: Cross multiply
    18,665.30x = 25,757.89 × 10,281.62
  4. Step 4: Simplify right side
    18,665.30x = 264,832,836.98
  5. Step 5: Solve for x
    x = 264,832,836.98/18,665.30
  6. Step 6: Final answer
    x = 14,188.51

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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.