Home / 8,778.40-13,154.32-3,845.28

Finding the Fourth Proportional to 8,778.40, 13,154.32 and 3,845.28

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Solution

The fourth proportional to 8,778.40, 13,154.32 and 3,845.28 is: 5,762.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,778.40 : 13,154.32 = 3,845.28 : x
  2. Step 2: Convert to fraction form
    8,778.40/13,154.32 = 3,845.28/x
  3. Step 3: Cross multiply
    8,778.40x = 13,154.32 × 3,845.28
  4. Step 4: Simplify right side
    8,778.40x = 50,582,043.61
  5. Step 5: Solve for x
    x = 50,582,043.61/8,778.40
  6. Step 6: Final answer
    x = 5,762.10

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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.