Home / 8,621.85-11,898.12-4,845.12

Finding the Fourth Proportional to 8,621.85, 11,898.12 and 4,845.12

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Solution

The fourth proportional to 8,621.85, 11,898.12 and 4,845.12 is: 6,686.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,621.85 : 11,898.12 = 4,845.12 : x
  2. Step 2: Convert to fraction form
    8,621.85/11,898.12 = 4,845.12/x
  3. Step 3: Cross multiply
    8,621.85x = 11,898.12 × 4,845.12
  4. Step 4: Simplify right side
    8,621.85x = 57,647,819.17
  5. Step 5: Solve for x
    x = 57,647,819.17/8,621.85
  6. Step 6: Final answer
    x = 6,686.25

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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.