Home / 10,868.96-16,308.30-6,188.78

Finding the Fourth Proportional to 10,868.96, 16,308.30 and 6,188.78

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Solution

The fourth proportional to 10,868.96, 16,308.30 and 6,188.78 is: 9,285.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,868.96 : 16,308.30 = 6,188.78 : x
  2. Step 2: Convert to fraction form
    10,868.96/16,308.30 = 6,188.78/x
  3. Step 3: Cross multiply
    10,868.96x = 16,308.30 × 6,188.78
  4. Step 4: Simplify right side
    10,868.96x = 100,928,480.87
  5. Step 5: Solve for x
    x = 100,928,480.87/10,868.96
  6. Step 6: Final answer
    x = 9,285.94

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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.