Home / 10,818.93-16,228.41-4,979.64

Finding the Fourth Proportional to 10,818.93, 16,228.41 and 4,979.64

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Solution

The fourth proportional to 10,818.93, 16,228.41 and 4,979.64 is: 7,469.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,818.93 : 16,228.41 = 4,979.64 : x
  2. Step 2: Convert to fraction form
    10,818.93/16,228.41 = 4,979.64/x
  3. Step 3: Cross multiply
    10,818.93x = 16,228.41 × 4,979.64
  4. Step 4: Simplify right side
    10,818.93x = 80,811,639.57
  5. Step 5: Solve for x
    x = 80,811,639.57/10,818.93
  6. Step 6: Final answer
    x = 7,469.47

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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.