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Finding the Fourth Proportional to 13,085.84, 18,054.04 and 8,614.11

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Solution

The fourth proportional to 13,085.84, 18,054.04 and 8,614.11 is: 11,884.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,085.84 : 18,054.04 = 8,614.11 : x
  2. Step 2: Convert to fraction form
    13,085.84/18,054.04 = 8,614.11/x
  3. Step 3: Cross multiply
    13,085.84x = 18,054.04 × 8,614.11
  4. Step 4: Simplify right side
    13,085.84x = 155,519,464.97
  5. Step 5: Solve for x
    x = 155,519,464.97/13,085.84
  6. Step 6: Final answer
    x = 11,884.56

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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.