Home / 11,987.04-16,540.92-7,271.04

Finding the Fourth Proportional to 11,987.04, 16,540.92 and 7,271.04

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Solution

The fourth proportional to 11,987.04, 16,540.92 and 7,271.04 is: 10,033.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,987.04 : 16,540.92 = 7,271.04 : x
  2. Step 2: Convert to fraction form
    11,987.04/16,540.92 = 7,271.04/x
  3. Step 3: Cross multiply
    11,987.04x = 16,540.92 × 7,271.04
  4. Step 4: Simplify right side
    11,987.04x = 120,269,690.96
  5. Step 5: Solve for x
    x = 120,269,690.96/11,987.04
  6. Step 6: Final answer
    x = 10,033.31

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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.