Home / 12,156.84-16,775.37-6,851.07

Finding the Fourth Proportional to 12,156.84, 16,775.37 and 6,851.07

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Solution

The fourth proportional to 12,156.84, 16,775.37 and 6,851.07 is: 9,453.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,156.84 : 16,775.37 = 6,851.07 : x
  2. Step 2: Convert to fraction form
    12,156.84/16,775.37 = 6,851.07/x
  3. Step 3: Cross multiply
    12,156.84x = 16,775.37 × 6,851.07
  4. Step 4: Simplify right side
    12,156.84x = 114,929,234.15
  5. Step 5: Solve for x
    x = 114,929,234.15/12,156.84
  6. Step 6: Final answer
    x = 9,453.87

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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.