Home / 8,251.63-11,383.01-5,418.59

Finding the Fourth Proportional to 8,251.63, 11,383.01 and 5,418.59

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Solution

The fourth proportional to 8,251.63, 11,383.01 and 5,418.59 is: 7,474.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,251.63 : 11,383.01 = 5,418.59 : x
  2. Step 2: Convert to fraction form
    8,251.63/11,383.01 = 5,418.59/x
  3. Step 3: Cross multiply
    8,251.63x = 11,383.01 × 5,418.59
  4. Step 4: Simplify right side
    8,251.63x = 61,679,864.50
  5. Step 5: Solve for x
    x = 61,679,864.50/8,251.63
  6. Step 6: Final answer
    x = 7,474.87

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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.