Home / 13,251.06-19,876.49-3,390.32

Finding the Fourth Proportional to 13,251.06, 19,876.49 and 3,390.32

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Solution

The fourth proportional to 13,251.06, 19,876.49 and 3,390.32 is: 5,085.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,251.06 : 19,876.49 = 3,390.32 : x
  2. Step 2: Convert to fraction form
    13,251.06/19,876.49 = 3,390.32/x
  3. Step 3: Cross multiply
    13,251.06x = 19,876.49 × 3,390.32
  4. Step 4: Simplify right side
    13,251.06x = 67,387,707.03
  5. Step 5: Solve for x
    x = 67,387,707.03/13,251.06
  6. Step 6: Final answer
    x = 5,085.46

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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.