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Finding the Fourth Proportional to 18,275.82, 25,220.64 and 9,892.32

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Solution

The fourth proportional to 18,275.82, 25,220.64 and 9,892.32 is: 13,651.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,275.82 : 25,220.64 = 9,892.32 : x
  2. Step 2: Convert to fraction form
    18,275.82/25,220.64 = 9,892.32/x
  3. Step 3: Cross multiply
    18,275.82x = 25,220.64 × 9,892.32
  4. Step 4: Simplify right side
    18,275.82x = 249,490,641.48
  5. Step 5: Solve for x
    x = 249,490,641.48/18,275.82
  6. Step 6: Final answer
    x = 13,651.41

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.