Home / 10,661.94-15,993.05-2,870.75

Finding the Fourth Proportional to 10,661.94, 15,993.05 and 2,870.75

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Solution

The fourth proportional to 10,661.94, 15,993.05 and 2,870.75 is: 4,306.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,661.94 : 15,993.05 = 2,870.75 : x
  2. Step 2: Convert to fraction form
    10,661.94/15,993.05 = 2,870.75/x
  3. Step 3: Cross multiply
    10,661.94x = 15,993.05 × 2,870.75
  4. Step 4: Simplify right side
    10,661.94x = 45,912,073.92
  5. Step 5: Solve for x
    x = 45,912,073.92/10,661.94
  6. Step 6: Final answer
    x = 4,306.17

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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.