Home / 11,125.14-15,352.91-6,649.08

Finding the Fourth Proportional to 11,125.14, 15,352.91 and 6,649.08

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Solution

The fourth proportional to 11,125.14, 15,352.91 and 6,649.08 is: 9,175.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,125.14 : 15,352.91 = 6,649.08 : x
  2. Step 2: Convert to fraction form
    11,125.14/15,352.91 = 6,649.08/x
  3. Step 3: Cross multiply
    11,125.14x = 15,352.91 × 6,649.08
  4. Step 4: Simplify right side
    11,125.14x = 102,082,726.82
  5. Step 5: Solve for x
    x = 102,082,726.82/11,125.14
  6. Step 6: Final answer
    x = 9,175.86

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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.