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Finding the Fourth Proportional to 18,310, 27,448.71 and 6,620.62

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Solution

The fourth proportional to 18,310, 27,448.71 and 6,620.62 is: 9,925.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,310 : 27,448.71 = 6,620.62 : x
  2. Step 2: Convert to fraction form
    18,310/27,448.71 = 6,620.62/x
  3. Step 3: Cross multiply
    18,310x = 27,448.71 × 6,620.62
  4. Step 4: Simplify right side
    18,310x = 181,727,478.40
  5. Step 5: Solve for x
    x = 181,727,478.40/18,310
  6. Step 6: Final answer
    x = 9,925.04

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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.