Home / 13,069.05-18,029.70-8,822.85

Finding the Fourth Proportional to 13,069.05, 18,029.70 and 8,822.85

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Solution

The fourth proportional to 13,069.05, 18,029.70 and 8,822.85 is: 12,171.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,069.05 : 18,029.70 = 8,822.85 : x
  2. Step 2: Convert to fraction form
    13,069.05/18,029.70 = 8,822.85/x
  3. Step 3: Cross multiply
    13,069.05x = 18,029.70 × 8,822.85
  4. Step 4: Simplify right side
    13,069.05x = 159,073,338.65
  5. Step 5: Solve for x
    x = 159,073,338.65/13,069.05
  6. Step 6: Final answer
    x = 12,171.76

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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.