Home / 13,299.51-19,947.70-3,438.01

Finding the Fourth Proportional to 13,299.51, 19,947.70 and 3,438.01

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Solution

The fourth proportional to 13,299.51, 19,947.70 and 3,438.01 is: 5,156.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,299.51 : 19,947.70 = 3,438.01 : x
  2. Step 2: Convert to fraction form
    13,299.51/19,947.70 = 3,438.01/x
  3. Step 3: Cross multiply
    13,299.51x = 19,947.70 × 3,438.01
  4. Step 4: Simplify right side
    13,299.51x = 68,580,392.08
  5. Step 5: Solve for x
    x = 68,580,392.08/13,299.51
  6. Step 6: Final answer
    x = 5,156.61

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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.