Home / 11,421.85-17,132.78-6,173.05

Finding the Fourth Proportional to 11,421.85, 17,132.78 and 6,173.05

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Solution

The fourth proportional to 11,421.85, 17,132.78 and 6,173.05 is: 9,259.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,421.85 : 17,132.78 = 6,173.05 : x
  2. Step 2: Convert to fraction form
    11,421.85/17,132.78 = 6,173.05/x
  3. Step 3: Cross multiply
    11,421.85x = 17,132.78 × 6,173.05
  4. Step 4: Simplify right side
    11,421.85x = 105,761,476.71
  5. Step 5: Solve for x
    x = 105,761,476.71/11,421.85
  6. Step 6: Final answer
    x = 9,259.58

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.