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Finding the Fourth Proportional to 15,240.54, 21,035.23 and 9,274.13

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Solution

The fourth proportional to 15,240.54, 21,035.23 and 9,274.13 is: 12,800.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,240.54 : 21,035.23 = 9,274.13 : x
  2. Step 2: Convert to fraction form
    15,240.54/21,035.23 = 9,274.13/x
  3. Step 3: Cross multiply
    15,240.54x = 21,035.23 × 9,274.13
  4. Step 4: Simplify right side
    15,240.54x = 195,083,352.42
  5. Step 5: Solve for x
    x = 195,083,352.42/15,240.54
  6. Step 6: Final answer
    x = 12,800.29

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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.