Home / 12,036.59-16,614.67-8,272.21

Finding the Fourth Proportional to 12,036.59, 16,614.67 and 8,272.21

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Solution

The fourth proportional to 12,036.59, 16,614.67 and 8,272.21 is: 11,418.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,036.59 : 16,614.67 = 8,272.21 : x
  2. Step 2: Convert to fraction form
    12,036.59/16,614.67 = 8,272.21/x
  3. Step 3: Cross multiply
    12,036.59x = 16,614.67 × 8,272.21
  4. Step 4: Simplify right side
    12,036.59x = 137,440,039.32
  5. Step 5: Solve for x
    x = 137,440,039.32/12,036.59
  6. Step 6: Final answer
    x = 11,418.52

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Half scale
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Double scale
Find fourth proportional to 12,037.59, 16,616.05 and 8,273.21
Similar ratio
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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.