Home / 11,179.68-15,426.78-6,465.48

Finding the Fourth Proportional to 11,179.68, 15,426.78 and 6,465.48

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Solution

The fourth proportional to 11,179.68, 15,426.78 and 6,465.48 is: 8,921.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,179.68 : 15,426.78 = 6,465.48 : x
  2. Step 2: Convert to fraction form
    11,179.68/15,426.78 = 6,465.48/x
  3. Step 3: Cross multiply
    11,179.68x = 15,426.78 × 6,465.48
  4. Step 4: Simplify right side
    11,179.68x = 99,741,537.55
  5. Step 5: Solve for x
    x = 99,741,537.55/11,179.68
  6. Step 6: Final answer
    x = 8,921.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.