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Finding the Fourth Proportional to 18,735, 28,103.80 and 6,254.52

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Solution

The fourth proportional to 18,735, 28,103.80 and 6,254.52 is: 9,382.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,735 : 28,103.80 = 6,254.52 : x
  2. Step 2: Convert to fraction form
    18,735/28,103.80 = 6,254.52/x
  3. Step 3: Cross multiply
    18,735x = 28,103.80 × 6,254.52
  4. Step 4: Simplify right side
    18,735x = 175,775,779.18
  5. Step 5: Solve for x
    x = 175,775,779.18/18,735
  6. Step 6: Final answer
    x = 9,382.21

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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.