Home / 7,689.06-11,533.52-2,142.43

Finding the Fourth Proportional to 7,689.06, 11,533.52 and 2,142.43

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Solution

The fourth proportional to 7,689.06, 11,533.52 and 2,142.43 is: 3,213.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,689.06 : 11,533.52 = 2,142.43 : x
  2. Step 2: Convert to fraction form
    7,689.06/11,533.52 = 2,142.43/x
  3. Step 3: Cross multiply
    7,689.06x = 11,533.52 × 2,142.43
  4. Step 4: Simplify right side
    7,689.06x = 24,709,735.78
  5. Step 5: Solve for x
    x = 24,709,735.78/7,689.06
  6. Step 6: Final answer
    x = 3,213.62

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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.