Home / 6,271.12-9,407.15-2,111.11

Finding the Fourth Proportional to 6,271.12, 9,407.15 and 2,111.11

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Solution

The fourth proportional to 6,271.12, 9,407.15 and 2,111.11 is: 3,166.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,271.12 : 9,407.15 = 2,111.11 : x
  2. Step 2: Convert to fraction form
    6,271.12/9,407.15 = 2,111.11/x
  3. Step 3: Cross multiply
    6,271.12x = 9,407.15 × 2,111.11
  4. Step 4: Simplify right side
    6,271.12x = 19,859,517.88
  5. Step 5: Solve for x
    x = 19,859,517.88/6,271.12
  6. Step 6: Final answer
    x = 3,166.82

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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.