Home / 13,288.19-19,932.21-3,426.62

Finding the Fourth Proportional to 13,288.19, 19,932.21 and 3,426.62

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Solution

The fourth proportional to 13,288.19, 19,932.21 and 3,426.62 is: 5,139.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,288.19 : 19,932.21 = 3,426.62 : x
  2. Step 2: Convert to fraction form
    13,288.19/19,932.21 = 3,426.62/x
  3. Step 3: Cross multiply
    13,288.19x = 19,932.21 × 3,426.62
  4. Step 4: Simplify right side
    13,288.19x = 68,300,009.77
  5. Step 5: Solve for x
    x = 68,300,009.77/13,288.19
  6. Step 6: Final answer
    x = 5,139.91

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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.