Home / 12,079.24-18,115.86-6,816.56

Finding the Fourth Proportional to 12,079.24, 18,115.86 and 6,816.56

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Solution

The fourth proportional to 12,079.24, 18,115.86 and 6,816.56 is: 10,223.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,079.24 : 18,115.86 = 6,816.56 : x
  2. Step 2: Convert to fraction form
    12,079.24/18,115.86 = 6,816.56/x
  3. Step 3: Cross multiply
    12,079.24x = 18,115.86 × 6,816.56
  4. Step 4: Simplify right side
    12,079.24x = 123,487,846.64
  5. Step 5: Solve for x
    x = 123,487,846.64/12,079.24
  6. Step 6: Final answer
    x = 10,223.15

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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.