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Finding the Fourth Proportional to 9,745.52, 13,448.43 and 5,553.77

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Solution

The fourth proportional to 9,745.52, 13,448.43 and 5,553.77 is: 7,663.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,745.52 : 13,448.43 = 5,553.77 : x
  2. Step 2: Convert to fraction form
    9,745.52/13,448.43 = 5,553.77/x
  3. Step 3: Cross multiply
    9,745.52x = 13,448.43 × 5,553.77
  4. Step 4: Simplify right side
    9,745.52x = 74,689,419.84
  5. Step 5: Solve for x
    x = 74,689,419.84/9,745.52
  6. Step 6: Final answer
    x = 7,663.98

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1.5x scale

Why These Related Problems?

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