Home / 7,748.16-11,635.20-7,687.68

Finding the Fourth Proportional to 7,748.16, 11,635.20 and 7,687.68

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Solution

The fourth proportional to 7,748.16, 11,635.20 and 7,687.68 is: 11,544.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,748.16 : 11,635.20 = 7,687.68 : x
  2. Step 2: Convert to fraction form
    7,748.16/11,635.20 = 7,687.68/x
  3. Step 3: Cross multiply
    7,748.16x = 11,635.20 × 7,687.68
  4. Step 4: Simplify right side
    7,748.16x = 89,447,694.34
  5. Step 5: Solve for x
    x = 89,447,694.34/7,748.16
  6. Step 6: Final answer
    x = 11,544.38

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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.