Home / 16,040.79-22,138.38-8,968.68

Finding the Fourth Proportional to 16,040.79, 22,138.38 and 8,968.68

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Solution

The fourth proportional to 16,040.79, 22,138.38 and 8,968.68 is: 12,377.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,040.79 : 22,138.38 = 8,968.68 : x
  2. Step 2: Convert to fraction form
    16,040.79/22,138.38 = 8,968.68/x
  3. Step 3: Cross multiply
    16,040.79x = 22,138.38 × 8,968.68
  4. Step 4: Simplify right side
    16,040.79x = 198,552,045.94
  5. Step 5: Solve for x
    x = 198,552,045.94/16,040.79
  6. Step 6: Final answer
    x = 12,377.95

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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.