Home / 13,839.92-19,098.48-7,872.08

Finding the Fourth Proportional to 13,839.92, 19,098.48 and 7,872.08

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Solution

The fourth proportional to 13,839.92, 19,098.48 and 7,872.08 is: 10,863.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,839.92 : 19,098.48 = 7,872.08 : x
  2. Step 2: Convert to fraction form
    13,839.92/19,098.48 = 7,872.08/x
  3. Step 3: Cross multiply
    13,839.92x = 19,098.48 × 7,872.08
  4. Step 4: Simplify right side
    13,839.92x = 150,344,762.44
  5. Step 5: Solve for x
    x = 150,344,762.44/13,839.92
  6. Step 6: Final answer
    x = 10,863.12

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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.