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Finding the Fourth Proportional to 12,670.92, 18,981.18 and 11,588.04

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Solution

The fourth proportional to 12,670.92, 18,981.18 and 11,588.04 is: 17,359.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,670.92 : 18,981.18 = 11,588.04 : x
  2. Step 2: Convert to fraction form
    12,670.92/18,981.18 = 11,588.04/x
  3. Step 3: Cross multiply
    12,670.92x = 18,981.18 × 11,588.04
  4. Step 4: Simplify right side
    12,670.92x = 219,954,673.09
  5. Step 5: Solve for x
    x = 219,954,673.09/12,670.92
  6. Step 6: Final answer
    x = 17,359.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.