Home / 7,015.88-10,515.62-3,895.16

Finding the Fourth Proportional to 7,015.88, 10,515.62 and 3,895.16

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Solution

The fourth proportional to 7,015.88, 10,515.62 and 3,895.16 is: 5,838.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,015.88 : 10,515.62 = 3,895.16 : x
  2. Step 2: Convert to fraction form
    7,015.88/10,515.62 = 3,895.16/x
  3. Step 3: Cross multiply
    7,015.88x = 10,515.62 × 3,895.16
  4. Step 4: Simplify right side
    7,015.88x = 40,959,979.56
  5. Step 5: Solve for x
    x = 40,959,979.56/7,015.88
  6. Step 6: Final answer
    x = 5,838.18

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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.