Home / 11,125.82-15,352.12-6,648.62

Finding the Fourth Proportional to 11,125.82, 15,352.12 and 6,648.62

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Solution

The fourth proportional to 11,125.82, 15,352.12 and 6,648.62 is: 9,174.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,125.82 : 15,352.12 = 6,648.62 : x
  2. Step 2: Convert to fraction form
    11,125.82/15,352.12 = 6,648.62/x
  3. Step 3: Cross multiply
    11,125.82x = 15,352.12 × 6,648.62
  4. Step 4: Simplify right side
    11,125.82x = 102,070,412.07
  5. Step 5: Solve for x
    x = 102,070,412.07/11,125.82
  6. Step 6: Final answer
    x = 9,174.19

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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.