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Finding the Fourth Proportional to 19,101.02, 28,641.03 and 6,619.92

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Solution

The fourth proportional to 19,101.02, 28,641.03 and 6,619.92 is: 9,926.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,101.02 : 28,641.03 = 6,619.92 : x
  2. Step 2: Convert to fraction form
    19,101.02/28,641.03 = 6,619.92/x
  3. Step 3: Cross multiply
    19,101.02x = 28,641.03 × 6,619.92
  4. Step 4: Simplify right side
    19,101.02x = 189,601,327.32
  5. Step 5: Solve for x
    x = 189,601,327.32/19,101.02
  6. Step 6: Final answer
    x = 9,926.24

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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.