Home / 16,960.78-23,408.30-9,408.79

Finding the Fourth Proportional to 16,960.78, 23,408.30 and 9,408.79

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Solution

The fourth proportional to 16,960.78, 23,408.30 and 9,408.79 is: 12,985.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,960.78 : 23,408.30 = 9,408.79 : x
  2. Step 2: Convert to fraction form
    16,960.78/23,408.30 = 9,408.79/x
  3. Step 3: Cross multiply
    16,960.78x = 23,408.30 × 9,408.79
  4. Step 4: Simplify right side
    16,960.78x = 220,243,778.96
  5. Step 5: Solve for x
    x = 220,243,778.96/16,960.78
  6. Step 6: Final answer
    x = 12,985.47

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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.