Home / 13,239.54-19,859.29-3,378.82

Finding the Fourth Proportional to 13,239.54, 19,859.29 and 3,378.82

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Solution

The fourth proportional to 13,239.54, 19,859.29 and 3,378.82 is: 5,068.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,239.54 : 19,859.29 = 3,378.82 : x
  2. Step 2: Convert to fraction form
    13,239.54/19,859.29 = 3,378.82/x
  3. Step 3: Cross multiply
    13,239.54x = 19,859.29 × 3,378.82
  4. Step 4: Simplify right side
    13,239.54x = 67,100,920.81
  5. Step 5: Solve for x
    x = 67,100,920.81/13,239.54
  6. Step 6: Final answer
    x = 5,068.22

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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.