Home / 11,125.69-15,352.41-6,648.55

Finding the Fourth Proportional to 11,125.69, 15,352.41 and 6,648.55

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Solution

The fourth proportional to 11,125.69, 15,352.41 and 6,648.55 is: 9,174.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,125.69 : 15,352.41 = 6,648.55 : x
  2. Step 2: Convert to fraction form
    11,125.69/15,352.41 = 6,648.55/x
  3. Step 3: Cross multiply
    11,125.69x = 15,352.41 × 6,648.55
  4. Step 4: Simplify right side
    11,125.69x = 102,071,265.51
  5. Step 5: Solve for x
    x = 102,071,265.51/11,125.69
  6. Step 6: Final answer
    x = 9,174.38

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Half scale
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Double scale
Find fourth proportional to 11,126.69, 15,353.79 and 6,649.55
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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.