Home / 16,318.78-24,474.51-7,990.45

Finding the Fourth Proportional to 16,318.78, 24,474.51 and 7,990.45

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Solution

The fourth proportional to 16,318.78, 24,474.51 and 7,990.45 is: 11,983.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,318.78 : 24,474.51 = 7,990.45 : x
  2. Step 2: Convert to fraction form
    16,318.78/24,474.51 = 7,990.45/x
  3. Step 3: Cross multiply
    16,318.78x = 24,474.51 × 7,990.45
  4. Step 4: Simplify right side
    16,318.78x = 195,562,348.43
  5. Step 5: Solve for x
    x = 195,562,348.43/16,318.78
  6. Step 6: Final answer
    x = 11,983.88

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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.