Home / 10,778.41-16,167.16-2,987.02

Finding the Fourth Proportional to 10,778.41, 16,167.16 and 2,987.02

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Solution

The fourth proportional to 10,778.41, 16,167.16 and 2,987.02 is: 4,480.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,778.41 : 16,167.16 = 2,987.02 : x
  2. Step 2: Convert to fraction form
    10,778.41/16,167.16 = 2,987.02/x
  3. Step 3: Cross multiply
    10,778.41x = 16,167.16 × 2,987.02
  4. Step 4: Simplify right side
    10,778.41x = 48,291,534.49
  5. Step 5: Solve for x
    x = 48,291,534.49/10,778.41
  6. Step 6: Final answer
    x = 4,480.40

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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.