Home / 19,419.85-26,802.04-11,355.97

Finding the Fourth Proportional to 19,419.85, 26,802.04 and 11,355.97

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Solution

The fourth proportional to 19,419.85, 26,802.04 and 11,355.97 is: 15,672.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,419.85 : 26,802.04 = 11,355.97 : x
  2. Step 2: Convert to fraction form
    19,419.85/26,802.04 = 11,355.97/x
  3. Step 3: Cross multiply
    19,419.85x = 26,802.04 × 11,355.97
  4. Step 4: Simplify right side
    19,419.85x = 304,363,162.18
  5. Step 5: Solve for x
    x = 304,363,162.18/19,419.85
  6. Step 6: Final answer
    x = 15,672.79

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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.