Home / 10,974.78-16,440.30-9,334.80

Finding the Fourth Proportional to 10,974.78, 16,440.30 and 9,334.80

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Solution

The fourth proportional to 10,974.78, 16,440.30 and 9,334.80 is: 13,983.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,974.78 : 16,440.30 = 9,334.80 : x
  2. Step 2: Convert to fraction form
    10,974.78/16,440.30 = 9,334.80/x
  3. Step 3: Cross multiply
    10,974.78x = 16,440.30 × 9,334.80
  4. Step 4: Simplify right side
    10,974.78x = 153,466,912.44
  5. Step 5: Solve for x
    x = 153,466,912.44/10,974.78
  6. Step 6: Final answer
    x = 13,983.60

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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.