Home / 10,140.80-15,200.42-5,982.75

Finding the Fourth Proportional to 10,140.80, 15,200.42 and 5,982.75

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Solution

The fourth proportional to 10,140.80, 15,200.42 and 5,982.75 is: 8,967.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,140.80 : 15,200.42 = 5,982.75 : x
  2. Step 2: Convert to fraction form
    10,140.80/15,200.42 = 5,982.75/x
  3. Step 3: Cross multiply
    10,140.80x = 15,200.42 × 5,982.75
  4. Step 4: Simplify right side
    10,140.80x = 90,940,282.84
  5. Step 5: Solve for x
    x = 90,940,282.84/10,140.80
  6. Step 6: Final answer
    x = 8,967.77

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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.