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Finding the Fourth Proportional to 12,353.52, 17,050.20 and 7,639.92

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Solution

The fourth proportional to 12,353.52, 17,050.20 and 7,639.92 is: 10,544.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,353.52 : 17,050.20 = 7,639.92 : x
  2. Step 2: Convert to fraction form
    12,353.52/17,050.20 = 7,639.92/x
  3. Step 3: Cross multiply
    12,353.52x = 17,050.20 × 7,639.92
  4. Step 4: Simplify right side
    12,353.52x = 130,262,163.98
  5. Step 5: Solve for x
    x = 130,262,163.98/12,353.52
  6. Step 6: Final answer
    x = 10,544.54

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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.