Home / 10,765.95-16,147.09-2,974.78

Finding the Fourth Proportional to 10,765.95, 16,147.09 and 2,974.78

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Solution

The fourth proportional to 10,765.95, 16,147.09 and 2,974.78 is: 4,461.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,765.95 : 16,147.09 = 2,974.78 : x
  2. Step 2: Convert to fraction form
    10,765.95/16,147.09 = 2,974.78/x
  3. Step 3: Cross multiply
    10,765.95x = 16,147.09 × 2,974.78
  4. Step 4: Simplify right side
    10,765.95x = 48,034,040.39
  5. Step 5: Solve for x
    x = 48,034,040.39/10,765.95
  6. Step 6: Final answer
    x = 4,461.66

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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.