Home / 12,181.23-16,810.88-6,874.11

Finding the Fourth Proportional to 12,181.23, 16,810.88 and 6,874.11

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Solution

The fourth proportional to 12,181.23, 16,810.88 and 6,874.11 is: 9,486.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,181.23 : 16,810.88 = 6,874.11 : x
  2. Step 2: Convert to fraction form
    12,181.23/16,810.88 = 6,874.11/x
  3. Step 3: Cross multiply
    12,181.23x = 16,810.88 × 6,874.11
  4. Step 4: Simplify right side
    12,181.23x = 115,559,803.95
  5. Step 5: Solve for x
    x = 115,559,803.95/12,181.23
  6. Step 6: Final answer
    x = 9,486.71

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Double scale
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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.