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Finding the Fourth Proportional to 19,100.71, 28,625.10 and 7,248.11

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Solution

The fourth proportional to 19,100.71, 28,625.10 and 7,248.11 is: 10,862.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,100.71 : 28,625.10 = 7,248.11 : x
  2. Step 2: Convert to fraction form
    19,100.71/28,625.10 = 7,248.11/x
  3. Step 3: Cross multiply
    19,100.71x = 28,625.10 × 7,248.11
  4. Step 4: Simplify right side
    19,100.71x = 207,477,694.19
  5. Step 5: Solve for x
    x = 207,477,694.19/19,100.71
  6. Step 6: Final answer
    x = 10,862.31

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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.