Home / 13,842.67-19,103.91-7,876.26

Finding the Fourth Proportional to 13,842.67, 19,103.91 and 7,876.26

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Solution

The fourth proportional to 13,842.67, 19,103.91 and 7,876.26 is: 10,869.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,842.67 : 19,103.91 = 7,876.26 : x
  2. Step 2: Convert to fraction form
    13,842.67/19,103.91 = 7,876.26/x
  3. Step 3: Cross multiply
    13,842.67x = 19,103.91 × 7,876.26
  4. Step 4: Simplify right side
    13,842.67x = 150,467,362.18
  5. Step 5: Solve for x
    x = 150,467,362.18/13,842.67
  6. Step 6: Final answer
    x = 10,869.82

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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.