Home / 12,090.41-16,691.71-8,056.17

Finding the Fourth Proportional to 12,090.41, 16,691.71 and 8,056.17

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Solution

The fourth proportional to 12,090.41, 16,691.71 and 8,056.17 is: 11,122.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,090.41 : 16,691.71 = 8,056.17 : x
  2. Step 2: Convert to fraction form
    12,090.41/16,691.71 = 8,056.17/x
  3. Step 3: Cross multiply
    12,090.41x = 16,691.71 × 8,056.17
  4. Step 4: Simplify right side
    12,090.41x = 134,471,260.46
  5. Step 5: Solve for x
    x = 134,471,260.46/12,090.41
  6. Step 6: Final answer
    x = 11,122.14

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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.