Home / 8,859.30-13,278.15-3,923.70

Finding the Fourth Proportional to 8,859.30, 13,278.15 and 3,923.70

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Solution

The fourth proportional to 8,859.30, 13,278.15 and 3,923.70 is: 5,880.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,859.30 : 13,278.15 = 3,923.70 : x
  2. Step 2: Convert to fraction form
    8,859.30/13,278.15 = 3,923.70/x
  3. Step 3: Cross multiply
    8,859.30x = 13,278.15 × 3,923.70
  4. Step 4: Simplify right side
    8,859.30x = 52,099,477.16
  5. Step 5: Solve for x
    x = 52,099,477.16/8,859.30
  6. Step 6: Final answer
    x = 5,880.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.