Home / 7,688.12-11,531.32-4,527.48

Finding the Fourth Proportional to 7,688.12, 11,531.32 and 4,527.48

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Solution

The fourth proportional to 7,688.12, 11,531.32 and 4,527.48 is: 6,790.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,688.12 : 11,531.32 = 4,527.48 : x
  2. Step 2: Convert to fraction form
    7,688.12/11,531.32 = 4,527.48/x
  3. Step 3: Cross multiply
    7,688.12x = 11,531.32 × 4,527.48
  4. Step 4: Simplify right side
    7,688.12x = 52,207,820.67
  5. Step 5: Solve for x
    x = 52,207,820.67/7,688.12
  6. Step 6: Final answer
    x = 6,790.71

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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.