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Finding the Fourth Proportional to 18,504.71, 27,761.62 and 5,358.41

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Solution

The fourth proportional to 18,504.71, 27,761.62 and 5,358.41 is: 8,038.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,504.71 : 27,761.62 = 5,358.41 : x
  2. Step 2: Convert to fraction form
    18,504.71/27,761.62 = 5,358.41/x
  3. Step 3: Cross multiply
    18,504.71x = 27,761.62 × 5,358.41
  4. Step 4: Simplify right side
    18,504.71x = 148,758,142.22
  5. Step 5: Solve for x
    x = 148,758,142.22/18,504.71
  6. Step 6: Final answer
    x = 8,038.93

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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.