Home / 13,788.88-19,028.80-7,501.26

Finding the Fourth Proportional to 13,788.88, 19,028.80 and 7,501.26

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Solution

The fourth proportional to 13,788.88, 19,028.80 and 7,501.26 is: 10,351.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,788.88 : 19,028.80 = 7,501.26 : x
  2. Step 2: Convert to fraction form
    13,788.88/19,028.80 = 7,501.26/x
  3. Step 3: Cross multiply
    13,788.88x = 19,028.80 × 7,501.26
  4. Step 4: Simplify right side
    13,788.88x = 142,739,976.29
  5. Step 5: Solve for x
    x = 142,739,976.29/13,788.88
  6. Step 6: Final answer
    x = 10,351.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.