Home / 8,215.32-11,337.78-4,679.64

Finding the Fourth Proportional to 8,215.32, 11,337.78 and 4,679.64

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Solution

The fourth proportional to 8,215.32, 11,337.78 and 4,679.64 is: 6,458.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,215.32 : 11,337.78 = 4,679.64 : x
  2. Step 2: Convert to fraction form
    8,215.32/11,337.78 = 4,679.64/x
  3. Step 3: Cross multiply
    8,215.32x = 11,337.78 × 4,679.64
  4. Step 4: Simplify right side
    8,215.32x = 53,056,728.80
  5. Step 5: Solve for x
    x = 53,056,728.80/8,215.32
  6. Step 6: Final answer
    x = 6,458.27

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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.