Home / 7,689.08-11,533.68-2,142.56

Finding the Fourth Proportional to 7,689.08, 11,533.68 and 2,142.56

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Solution

The fourth proportional to 7,689.08, 11,533.68 and 2,142.56 is: 3,213.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,689.08 : 11,533.68 = 2,142.56 : x
  2. Step 2: Convert to fraction form
    7,689.08/11,533.68 = 2,142.56/x
  3. Step 3: Cross multiply
    7,689.08x = 11,533.68 × 2,142.56
  4. Step 4: Simplify right side
    7,689.08x = 24,711,601.42
  5. Step 5: Solve for x
    x = 24,711,601.42/7,689.08
  6. Step 6: Final answer
    x = 3,213.86

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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.