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Finding the Fourth Proportional to 18,188.61, 27,287.01 and 5,708.58

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Solution

The fourth proportional to 18,188.61, 27,287.01 and 5,708.58 is: 8,564.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,188.61 : 27,287.01 = 5,708.58 : x
  2. Step 2: Convert to fraction form
    18,188.61/27,287.01 = 5,708.58/x
  3. Step 3: Cross multiply
    18,188.61x = 27,287.01 × 5,708.58
  4. Step 4: Simplify right side
    18,188.61x = 155,770,079.55
  5. Step 5: Solve for x
    x = 155,770,079.55/18,188.61
  6. Step 6: Final answer
    x = 8,564.16

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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.