Home / 8,245.20-11,383.62-5,417.58

Finding the Fourth Proportional to 8,245.20, 11,383.62 and 5,417.58

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Solution

The fourth proportional to 8,245.20, 11,383.62 and 5,417.58 is: 7,479.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,245.20 : 11,383.62 = 5,417.58 : x
  2. Step 2: Convert to fraction form
    8,245.20/11,383.62 = 5,417.58/x
  3. Step 3: Cross multiply
    8,245.20x = 11,383.62 × 5,417.58
  4. Step 4: Simplify right side
    8,245.20x = 61,671,672.04
  5. Step 5: Solve for x
    x = 61,671,672.04/8,245.20
  6. Step 6: Final answer
    x = 7,479.71

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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.