Home / 9,147.90-13,720.14-2,572.44

Finding the Fourth Proportional to 9,147.90, 13,720.14 and 2,572.44

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Solution

The fourth proportional to 9,147.90, 13,720.14 and 2,572.44 is: 3,858.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,147.90 : 13,720.14 = 2,572.44 : x
  2. Step 2: Convert to fraction form
    9,147.90/13,720.14 = 2,572.44/x
  3. Step 3: Cross multiply
    9,147.90x = 13,720.14 × 2,572.44
  4. Step 4: Simplify right side
    9,147.90x = 35,294,236.94
  5. Step 5: Solve for x
    x = 35,294,236.94/9,147.90
  6. Step 6: Final answer
    x = 3,858.18

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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.