Home / 7,685.08-11,527.68-2,138.56

Finding the Fourth Proportional to 7,685.08, 11,527.68 and 2,138.56

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Solution

The fourth proportional to 7,685.08, 11,527.68 and 2,138.56 is: 3,207.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,685.08 : 11,527.68 = 2,138.56 : x
  2. Step 2: Convert to fraction form
    7,685.08/11,527.68 = 2,138.56/x
  3. Step 3: Cross multiply
    7,685.08x = 11,527.68 × 2,138.56
  4. Step 4: Simplify right side
    7,685.08x = 24,652,635.34
  5. Step 5: Solve for x
    x = 24,652,635.34/7,685.08
  6. Step 6: Final answer
    x = 3,207.86

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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.