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Finding the Fourth Proportional to 18,036.64, 27,064.65 and 8,802.64

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Solution

The fourth proportional to 18,036.64, 27,064.65 and 8,802.64 is: 13,208.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,036.64 : 27,064.65 = 8,802.64 : x
  2. Step 2: Convert to fraction form
    18,036.64/27,064.65 = 8,802.64/x
  3. Step 3: Cross multiply
    18,036.64x = 27,064.65 × 8,802.64
  4. Step 4: Simplify right side
    18,036.64x = 238,240,370.68
  5. Step 5: Solve for x
    x = 238,240,370.68/18,036.64
  6. Step 6: Final answer
    x = 13,208.69

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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.