Home / 7,680.67-11,521.14-2,751.55

Finding the Fourth Proportional to 7,680.67, 11,521.14 and 2,751.55

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Solution

The fourth proportional to 7,680.67, 11,521.14 and 2,751.55 is: 4,127.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,680.67 : 11,521.14 = 2,751.55 : x
  2. Step 2: Convert to fraction form
    7,680.67/11,521.14 = 2,751.55/x
  3. Step 3: Cross multiply
    7,680.67x = 11,521.14 × 2,751.55
  4. Step 4: Simplify right side
    7,680.67x = 31,700,992.77
  5. Step 5: Solve for x
    x = 31,700,992.77/7,680.67
  6. Step 6: Final answer
    x = 4,127.37

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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.