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Finding the Fourth Proportional to 19,001.25, 28,502.28 and 6,521.22

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Solution

The fourth proportional to 19,001.25, 28,502.28 and 6,521.22 is: 9,781.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,001.25 : 28,502.28 = 6,521.22 : x
  2. Step 2: Convert to fraction form
    19,001.25/28,502.28 = 6,521.22/x
  3. Step 3: Cross multiply
    19,001.25x = 28,502.28 × 6,521.22
  4. Step 4: Simplify right side
    19,001.25x = 185,869,638.38
  5. Step 5: Solve for x
    x = 185,869,638.38/19,001.25
  6. Step 6: Final answer
    x = 9,781.97

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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.