Home / 10,766.70-16,155.54-6,330.78

Finding the Fourth Proportional to 10,766.70, 16,155.54 and 6,330.78

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Solution

The fourth proportional to 10,766.70, 16,155.54 and 6,330.78 is: 9,499.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,766.70 : 16,155.54 = 6,330.78 : x
  2. Step 2: Convert to fraction form
    10,766.70/16,155.54 = 6,330.78/x
  3. Step 3: Cross multiply
    10,766.70x = 16,155.54 × 6,330.78
  4. Step 4: Simplify right side
    10,766.70x = 102,277,169.52
  5. Step 5: Solve for x
    x = 102,277,169.52/10,766.70
  6. Step 6: Final answer
    x = 9,499.40

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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.