Home / 8,215.57-11,337.41-4,631.68

Finding the Fourth Proportional to 8,215.57, 11,337.41 and 4,631.68

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Solution

The fourth proportional to 8,215.57, 11,337.41 and 4,631.68 is: 6,391.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,215.57 : 11,337.41 = 4,631.68 : x
  2. Step 2: Convert to fraction form
    8,215.57/11,337.41 = 4,631.68/x
  3. Step 3: Cross multiply
    8,215.57x = 11,337.41 × 4,631.68
  4. Step 4: Simplify right side
    8,215.57x = 52,511,255.15
  5. Step 5: Solve for x
    x = 52,511,255.15/8,215.57
  6. Step 6: Final answer
    x = 6,391.68

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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.