Home / 12,179.21-16,807.01-6,874.11

Finding the Fourth Proportional to 12,179.21, 16,807.01 and 6,874.11

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Solution

The fourth proportional to 12,179.21, 16,807.01 and 6,874.11 is: 9,486.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,179.21 : 16,807.01 = 6,874.11 : x
  2. Step 2: Convert to fraction form
    12,179.21/16,807.01 = 6,874.11/x
  3. Step 3: Cross multiply
    12,179.21x = 16,807.01 × 6,874.11
  4. Step 4: Simplify right side
    12,179.21x = 115,533,201.14
  5. Step 5: Solve for x
    x = 115,533,201.14/12,179.21
  6. Step 6: Final answer
    x = 9,486.10

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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.