Home / 13,828.92-19,083.50-7,861.24

Finding the Fourth Proportional to 13,828.92, 19,083.50 and 7,861.24

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Solution

The fourth proportional to 13,828.92, 19,083.50 and 7,861.24 is: 10,848.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,828.92 : 19,083.50 = 7,861.24 : x
  2. Step 2: Convert to fraction form
    13,828.92/19,083.50 = 7,861.24/x
  3. Step 3: Cross multiply
    13,828.92x = 19,083.50 × 7,861.24
  4. Step 4: Simplify right side
    13,828.92x = 150,019,973.54
  5. Step 5: Solve for x
    x = 150,019,973.54/13,828.92
  6. Step 6: Final answer
    x = 10,848.28

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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.