Home / 8,579.20-11,839.40-4,802.60

Finding the Fourth Proportional to 8,579.20, 11,839.40 and 4,802.60

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Solution

The fourth proportional to 8,579.20, 11,839.40 and 4,802.60 is: 6,627.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,579.20 : 11,839.40 = 4,802.60 : x
  2. Step 2: Convert to fraction form
    8,579.20/11,839.40 = 4,802.60/x
  3. Step 3: Cross multiply
    8,579.20x = 11,839.40 × 4,802.60
  4. Step 4: Simplify right side
    8,579.20x = 56,859,902.44
  5. Step 5: Solve for x
    x = 56,859,902.44/8,579.20
  6. Step 6: Final answer
    x = 6,627.65

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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.