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Finding the Fourth Proportional to 8,745.33, 12,069.63 and 4,969.92

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Solution

The fourth proportional to 8,745.33, 12,069.63 and 4,969.92 is: 6,859.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,745.33 : 12,069.63 = 4,969.92 : x
  2. Step 2: Convert to fraction form
    8,745.33/12,069.63 = 4,969.92/x
  3. Step 3: Cross multiply
    8,745.33x = 12,069.63 × 4,969.92
  4. Step 4: Simplify right side
    8,745.33x = 59,985,095.53
  5. Step 5: Solve for x
    x = 59,985,095.53/8,745.33
  6. Step 6: Final answer
    x = 6,859.10

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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.