Home / 16,513.68-22,778.40-11,217.64

Finding the Fourth Proportional to 16,513.68, 22,778.40 and 11,217.64

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Solution

The fourth proportional to 16,513.68, 22,778.40 and 11,217.64 is: 15,473.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,513.68 : 22,778.40 = 11,217.64 : x
  2. Step 2: Convert to fraction form
    16,513.68/22,778.40 = 11,217.64/x
  3. Step 3: Cross multiply
    16,513.68x = 22,778.40 × 11,217.64
  4. Step 4: Simplify right side
    16,513.68x = 255,519,890.98
  5. Step 5: Solve for x
    x = 255,519,890.98/16,513.68
  6. Step 6: Final answer
    x = 15,473.23

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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.