Home / 12,214.80-16,856.12-6,837.30

Finding the Fourth Proportional to 12,214.80, 16,856.12 and 6,837.30

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Solution

The fourth proportional to 12,214.80, 16,856.12 and 6,837.30 is: 9,435.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,214.80 : 16,856.12 = 6,837.30 : x
  2. Step 2: Convert to fraction form
    12,214.80/16,856.12 = 6,837.30/x
  3. Step 3: Cross multiply
    12,214.80x = 16,856.12 × 6,837.30
  4. Step 4: Simplify right side
    12,214.80x = 115,250,315.09
  5. Step 5: Solve for x
    x = 115,250,315.09/12,214.80
  6. Step 6: Final answer
    x = 9,435.30

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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.