Home / 10,869.28-16,274.27-8,228.79

Finding the Fourth Proportional to 10,869.28, 16,274.27 and 8,228.79

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Solution

The fourth proportional to 10,869.28, 16,274.27 and 8,228.79 is: 12,320.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,869.28 : 16,274.27 = 8,228.79 : x
  2. Step 2: Convert to fraction form
    10,869.28/16,274.27 = 8,228.79/x
  3. Step 3: Cross multiply
    10,869.28x = 16,274.27 × 8,228.79
  4. Step 4: Simplify right side
    10,869.28x = 133,917,631.83
  5. Step 5: Solve for x
    x = 133,917,631.83/10,869.28
  6. Step 6: Final answer
    x = 12,320.75

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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.