Home / 10,778.20-16,167.30-3,851.32

Finding the Fourth Proportional to 10,778.20, 16,167.30 and 3,851.32

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Solution

The fourth proportional to 10,778.20, 16,167.30 and 3,851.32 is: 5,776.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,778.20 : 16,167.30 = 3,851.32 : x
  2. Step 2: Convert to fraction form
    10,778.20/16,167.30 = 3,851.32/x
  3. Step 3: Cross multiply
    10,778.20x = 16,167.30 × 3,851.32
  4. Step 4: Simplify right side
    10,778.20x = 62,265,445.84
  5. Step 5: Solve for x
    x = 62,265,445.84/10,778.20
  6. Step 6: Final answer
    x = 5,776.98

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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.