Home / 10,778.41-16,168.74-2,987.23

Finding the Fourth Proportional to 10,778.41, 16,168.74 and 2,987.23

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Solution

The fourth proportional to 10,778.41, 16,168.74 and 2,987.23 is: 4,481.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,778.41 : 16,168.74 = 2,987.23 : x
  2. Step 2: Convert to fraction form
    10,778.41/16,168.74 = 2,987.23/x
  3. Step 3: Cross multiply
    10,778.41x = 16,168.74 × 2,987.23
  4. Step 4: Simplify right side
    10,778.41x = 48,299,745.19
  5. Step 5: Solve for x
    x = 48,299,745.19/10,778.41
  6. Step 6: Final answer
    x = 4,481.16

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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.