Home / 7,687.24-11,531.50-5,632.81

Finding the Fourth Proportional to 7,687.24, 11,531.50 and 5,632.81

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Solution

The fourth proportional to 7,687.24, 11,531.50 and 5,632.81 is: 8,449.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,687.24 : 11,531.50 = 5,632.81 : x
  2. Step 2: Convert to fraction form
    7,687.24/11,531.50 = 5,632.81/x
  3. Step 3: Cross multiply
    7,687.24x = 11,531.50 × 5,632.81
  4. Step 4: Simplify right side
    7,687.24x = 64,954,705.60
  5. Step 5: Solve for x
    x = 64,954,705.60/7,687.24
  6. Step 6: Final answer
    x = 8,449.68

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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.