Home / 7,680.88-11,521.18-2,486.76

Finding the Fourth Proportional to 7,680.88, 11,521.18 and 2,486.76

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Solution

The fourth proportional to 7,680.88, 11,521.18 and 2,486.76 is: 3,730.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,680.88 : 11,521.18 = 2,486.76 : x
  2. Step 2: Convert to fraction form
    7,680.88/11,521.18 = 2,486.76/x
  3. Step 3: Cross multiply
    7,680.88x = 11,521.18 × 2,486.76
  4. Step 4: Simplify right side
    7,680.88x = 28,650,409.58
  5. Step 5: Solve for x
    x = 28,650,409.58/7,680.88
  6. Step 6: Final answer
    x = 3,730.09

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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.