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Finding the Fourth Proportional to 18,432.60, 27,646.20 and 5,283.60

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Solution

The fourth proportional to 18,432.60, 27,646.20 and 5,283.60 is: 7,924.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,432.60 : 27,646.20 = 5,283.60 : x
  2. Step 2: Convert to fraction form
    18,432.60/27,646.20 = 5,283.60/x
  3. Step 3: Cross multiply
    18,432.60x = 27,646.20 × 5,283.60
  4. Step 4: Simplify right side
    18,432.60x = 146,071,462.32
  5. Step 5: Solve for x
    x = 146,071,462.32/18,432.60
  6. Step 6: Final answer
    x = 7,924.63

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