Home / 10,868.20-16,313.10-5,327.80

Finding the Fourth Proportional to 10,868.20, 16,313.10 and 5,327.80

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Solution

The fourth proportional to 10,868.20, 16,313.10 and 5,327.80 is: 7,996.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,868.20 : 16,313.10 = 5,327.80 : x
  2. Step 2: Convert to fraction form
    10,868.20/16,313.10 = 5,327.80/x
  3. Step 3: Cross multiply
    10,868.20x = 16,313.10 × 5,327.80
  4. Step 4: Simplify right side
    10,868.20x = 86,912,934.18
  5. Step 5: Solve for x
    x = 86,912,934.18/10,868.20
  6. Step 6: Final answer
    x = 7,996.99

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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.