Home / 8,845.20-13,245.12-4,931.28

Finding the Fourth Proportional to 8,845.20, 13,245.12 and 4,931.28

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Solution

The fourth proportional to 8,845.20, 13,245.12 and 4,931.28 is: 7,384.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,845.20 : 13,245.12 = 4,931.28 : x
  2. Step 2: Convert to fraction form
    8,845.20/13,245.12 = 4,931.28/x
  3. Step 3: Cross multiply
    8,845.20x = 13,245.12 × 4,931.28
  4. Step 4: Simplify right side
    8,845.20x = 65,315,395.35
  5. Step 5: Solve for x
    x = 65,315,395.35/8,845.20
  6. Step 6: Final answer
    x = 7,384.28

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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.