Home / 12,315.98-18,475.17-3,995.66

Finding the Fourth Proportional to 12,315.98, 18,475.17 and 3,995.66

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Solution

The fourth proportional to 12,315.98, 18,475.17 and 3,995.66 is: 5,993.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,315.98 : 18,475.17 = 3,995.66 : x
  2. Step 2: Convert to fraction form
    12,315.98/18,475.17 = 3,995.66/x
  3. Step 3: Cross multiply
    12,315.98x = 18,475.17 × 3,995.66
  4. Step 4: Simplify right side
    12,315.98x = 73,820,497.76
  5. Step 5: Solve for x
    x = 73,820,497.76/12,315.98
  6. Step 6: Final answer
    x = 5,993.88

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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.