Home / 13,511.66-20,239.22-10,864.85

Finding the Fourth Proportional to 13,511.66, 20,239.22 and 10,864.85

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Solution

The fourth proportional to 13,511.66, 20,239.22 and 10,864.85 is: 16,274.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,511.66 : 20,239.22 = 10,864.85 : x
  2. Step 2: Convert to fraction form
    13,511.66/20,239.22 = 10,864.85/x
  3. Step 3: Cross multiply
    13,511.66x = 20,239.22 × 10,864.85
  4. Step 4: Simplify right side
    13,511.66x = 219,896,015.38
  5. Step 5: Solve for x
    x = 219,896,015.38/13,511.66
  6. Step 6: Final answer
    x = 16,274.54

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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.