Home / 6,261.64-9,384.60-5,479.78

Finding the Fourth Proportional to 6,261.64, 9,384.60 and 5,479.78

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Solution

The fourth proportional to 6,261.64, 9,384.60 and 5,479.78 is: 8,212.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,261.64 : 9,384.60 = 5,479.78 : x
  2. Step 2: Convert to fraction form
    6,261.64/9,384.60 = 5,479.78/x
  3. Step 3: Cross multiply
    6,261.64x = 9,384.60 × 5,479.78
  4. Step 4: Simplify right side
    6,261.64x = 51,425,543.39
  5. Step 5: Solve for x
    x = 51,425,543.39/6,261.64
  6. Step 6: Final answer
    x = 8,212.79

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1.5x scale

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.