Home / 7,215.85-10,824.15-3,521.23

Finding the Fourth Proportional to 7,215.85, 10,824.15 and 3,521.23

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Solution

The fourth proportional to 7,215.85, 10,824.15 and 3,521.23 is: 5,282.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,215.85 : 10,824.15 = 3,521.23 : x
  2. Step 2: Convert to fraction form
    7,215.85/10,824.15 = 3,521.23/x
  3. Step 3: Cross multiply
    7,215.85x = 10,824.15 × 3,521.23
  4. Step 4: Simplify right side
    7,215.85x = 38,114,321.70
  5. Step 5: Solve for x
    x = 38,114,321.70/7,215.85
  6. Step 6: Final answer
    x = 5,282.03

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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.