Home / 10,778.53-16,167.80-2,987.34

Finding the Fourth Proportional to 10,778.53, 16,167.80 and 2,987.34

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Solution

The fourth proportional to 10,778.53, 16,167.80 and 2,987.34 is: 4,481.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,778.53 : 16,167.80 = 2,987.34 : x
  2. Step 2: Convert to fraction form
    10,778.53/16,167.80 = 2,987.34/x
  3. Step 3: Cross multiply
    10,778.53x = 16,167.80 × 2,987.34
  4. Step 4: Simplify right side
    10,778.53x = 48,298,715.65
  5. Step 5: Solve for x
    x = 48,298,715.65/10,778.53
  6. Step 6: Final answer
    x = 4,481.01

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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.