Home / 12,156.44-16,775.66-6,851.15

Finding the Fourth Proportional to 12,156.44, 16,775.66 and 6,851.15

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Solution

The fourth proportional to 12,156.44, 16,775.66 and 6,851.15 is: 9,454.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,156.44 : 16,775.66 = 6,851.15 : x
  2. Step 2: Convert to fraction form
    12,156.44/16,775.66 = 6,851.15/x
  3. Step 3: Cross multiply
    12,156.44x = 16,775.66 × 6,851.15
  4. Step 4: Simplify right side
    12,156.44x = 114,932,528.75
  5. Step 5: Solve for x
    x = 114,932,528.75/12,156.44
  6. Step 6: Final answer
    x = 9,454.46

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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.