Home / 11,119.04-15,343.44-6,642.56

Finding the Fourth Proportional to 11,119.04, 15,343.44 and 6,642.56

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Solution

The fourth proportional to 11,119.04, 15,343.44 and 6,642.56 is: 9,166.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,119.04 : 15,343.44 = 6,642.56 : x
  2. Step 2: Convert to fraction form
    11,119.04/15,343.44 = 6,642.56/x
  3. Step 3: Cross multiply
    11,119.04x = 15,343.44 × 6,642.56
  4. Step 4: Simplify right side
    11,119.04x = 101,919,720.81
  5. Step 5: Solve for x
    x = 101,919,720.81/11,119.04
  6. Step 6: Final answer
    x = 9,166.23

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Half scale
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Double scale
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Similar ratio
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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.