Home / 14,248.75-19,662.91-7,961.17

Finding the Fourth Proportional to 14,248.75, 19,662.91 and 7,961.17

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Solution

The fourth proportional to 14,248.75, 19,662.91 and 7,961.17 is: 10,986.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,248.75 : 19,662.91 = 7,961.17 : x
  2. Step 2: Convert to fraction form
    14,248.75/19,662.91 = 7,961.17/x
  3. Step 3: Cross multiply
    14,248.75x = 19,662.91 × 7,961.17
  4. Step 4: Simplify right side
    14,248.75x = 156,539,769.20
  5. Step 5: Solve for x
    x = 156,539,769.20/14,248.75
  6. Step 6: Final answer
    x = 10,986.21

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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.