Home / 13,439.70-20,161.98-5,537.82

Finding the Fourth Proportional to 13,439.70, 20,161.98 and 5,537.82

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Solution

The fourth proportional to 13,439.70, 20,161.98 and 5,537.82 is: 8,307.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,439.70 : 20,161.98 = 5,537.82 : x
  2. Step 2: Convert to fraction form
    13,439.70/20,161.98 = 5,537.82/x
  3. Step 3: Cross multiply
    13,439.70x = 20,161.98 × 5,537.82
  4. Step 4: Simplify right side
    13,439.70x = 111,653,416.08
  5. Step 5: Solve for x
    x = 111,653,416.08/13,439.70
  6. Step 6: Final answer
    x = 8,307.73

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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.