Home / 11,126.19-15,353.10-6,649.05

Finding the Fourth Proportional to 11,126.19, 15,353.10 and 6,649.05

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Solution

The fourth proportional to 11,126.19, 15,353.10 and 6,649.05 is: 9,175.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,126.19 : 15,353.10 = 6,649.05 : x
  2. Step 2: Convert to fraction form
    11,126.19/15,353.10 = 6,649.05/x
  3. Step 3: Cross multiply
    11,126.19x = 15,353.10 × 6,649.05
  4. Step 4: Simplify right side
    11,126.19x = 102,083,529.56
  5. Step 5: Solve for x
    x = 102,083,529.56/11,126.19
  6. Step 6: Final answer
    x = 9,175.07

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Half scale
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Double scale
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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.