Home / 12,240.28-16,891.86-6,936.22

Finding the Fourth Proportional to 12,240.28, 16,891.86 and 6,936.22

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Solution

The fourth proportional to 12,240.28, 16,891.86 and 6,936.22 is: 9,572.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,240.28 : 16,891.86 = 6,936.22 : x
  2. Step 2: Convert to fraction form
    12,240.28/16,891.86 = 6,936.22/x
  3. Step 3: Cross multiply
    12,240.28x = 16,891.86 × 6,936.22
  4. Step 4: Simplify right side
    12,240.28x = 117,165,657.17
  5. Step 5: Solve for x
    x = 117,165,657.17/12,240.28
  6. Step 6: Final answer
    x = 9,572.14

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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.