Home / 10,381.85-15,575.16-2,986.37

Finding the Fourth Proportional to 10,381.85, 15,575.16 and 2,986.37

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Solution

The fourth proportional to 10,381.85, 15,575.16 and 2,986.37 is: 4,480.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,381.85 : 15,575.16 = 2,986.37 : x
  2. Step 2: Convert to fraction form
    10,381.85/15,575.16 = 2,986.37/x
  3. Step 3: Cross multiply
    10,381.85x = 15,575.16 × 2,986.37
  4. Step 4: Simplify right side
    10,381.85x = 46,513,190.57
  5. Step 5: Solve for x
    x = 46,513,190.57/10,381.85
  6. Step 6: Final answer
    x = 4,480.24

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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.