Home / 13,226.32-19,839.27-5,429.66

Finding the Fourth Proportional to 13,226.32, 19,839.27 and 5,429.66

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Solution

The fourth proportional to 13,226.32, 19,839.27 and 5,429.66 is: 8,144.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,226.32 : 19,839.27 = 5,429.66 : x
  2. Step 2: Convert to fraction form
    13,226.32/19,839.27 = 5,429.66/x
  3. Step 3: Cross multiply
    13,226.32x = 19,839.27 × 5,429.66
  4. Step 4: Simplify right side
    13,226.32x = 107,720,490.75
  5. Step 5: Solve for x
    x = 107,720,490.75/13,226.32
  6. Step 6: Final answer
    x = 8,144.41

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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.