Home / 7,143.18-10,718.01-3,682.86

Finding the Fourth Proportional to 7,143.18, 10,718.01 and 3,682.86

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Solution

The fourth proportional to 7,143.18, 10,718.01 and 3,682.86 is: 5,525.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,143.18 : 10,718.01 = 3,682.86 : x
  2. Step 2: Convert to fraction form
    7,143.18/10,718.01 = 3,682.86/x
  3. Step 3: Cross multiply
    7,143.18x = 10,718.01 × 3,682.86
  4. Step 4: Simplify right side
    7,143.18x = 39,472,930.31
  5. Step 5: Solve for x
    x = 39,472,930.31/7,143.18
  6. Step 6: Final answer
    x = 5,525.96

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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.