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Finding the Fourth Proportional to 11,398.51, 15,737.06 and 7,367.45

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Solution

The fourth proportional to 11,398.51, 15,737.06 and 7,367.45 is: 10,171.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,398.51 : 15,737.06 = 7,367.45 : x
  2. Step 2: Convert to fraction form
    11,398.51/15,737.06 = 7,367.45/x
  3. Step 3: Cross multiply
    11,398.51x = 15,737.06 × 7,367.45
  4. Step 4: Simplify right side
    11,398.51x = 115,941,993.49
  5. Step 5: Solve for x
    x = 115,941,993.49/11,398.51
  6. Step 6: Final answer
    x = 10,171.68

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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.