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Finding the Fourth Proportional to 10,803.78, 14,906.10 and 7,032.49

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Solution

The fourth proportional to 10,803.78, 14,906.10 and 7,032.49 is: 9,702.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,803.78 : 14,906.10 = 7,032.49 : x
  2. Step 2: Convert to fraction form
    10,803.78/14,906.10 = 7,032.49/x
  3. Step 3: Cross multiply
    10,803.78x = 14,906.10 × 7,032.49
  4. Step 4: Simplify right side
    10,803.78x = 104,826,999.19
  5. Step 5: Solve for x
    x = 104,826,999.19/10,803.78
  6. Step 6: Final answer
    x = 9,702.81

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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.