Home / 13,929.39-19,222.44-7,555.97

Finding the Fourth Proportional to 13,929.39, 19,222.44 and 7,555.97

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Solution

The fourth proportional to 13,929.39, 19,222.44 and 7,555.97 is: 10,427.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,929.39 : 19,222.44 = 7,555.97 : x
  2. Step 2: Convert to fraction form
    13,929.39/19,222.44 = 7,555.97/x
  3. Step 3: Cross multiply
    13,929.39x = 19,222.44 × 7,555.97
  4. Step 4: Simplify right side
    13,929.39x = 145,244,083.85
  5. Step 5: Solve for x
    x = 145,244,083.85/13,929.39
  6. Step 6: Final answer
    x = 10,427.17

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1.5x scale

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.