Home / 10,381.16-15,572.64-2,986.22

Finding the Fourth Proportional to 10,381.16, 15,572.64 and 2,986.22

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Solution

The fourth proportional to 10,381.16, 15,572.64 and 2,986.22 is: 4,479.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,381.16 : 15,572.64 = 2,986.22 : x
  2. Step 2: Convert to fraction form
    10,381.16/15,572.64 = 2,986.22/x
  3. Step 3: Cross multiply
    10,381.16x = 15,572.64 × 2,986.22
  4. Step 4: Simplify right side
    10,381.16x = 46,503,329.02
  5. Step 5: Solve for x
    x = 46,503,329.02/10,381.16
  6. Step 6: Final answer
    x = 4,479.59

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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.