Home / 12,384.65-18,575.97-3,499.62

Finding the Fourth Proportional to 12,384.65, 18,575.97 and 3,499.62

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Solution

The fourth proportional to 12,384.65, 18,575.97 and 3,499.62 is: 5,249.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,384.65 : 18,575.97 = 3,499.62 : x
  2. Step 2: Convert to fraction form
    12,384.65/18,575.97 = 3,499.62/x
  3. Step 3: Cross multiply
    12,384.65x = 18,575.97 × 3,499.62
  4. Step 4: Simplify right side
    12,384.65x = 65,008,836.13
  5. Step 5: Solve for x
    x = 65,008,836.13/12,384.65
  6. Step 6: Final answer
    x = 5,249.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.