Home / 9,913.97-13,682.43-5,665.73

Finding the Fourth Proportional to 9,913.97, 13,682.43 and 5,665.73

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Solution

The fourth proportional to 9,913.97, 13,682.43 and 5,665.73 is: 7,819.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,913.97 : 13,682.43 = 5,665.73 : x
  2. Step 2: Convert to fraction form
    9,913.97/13,682.43 = 5,665.73/x
  3. Step 3: Cross multiply
    9,913.97x = 13,682.43 × 5,665.73
  4. Step 4: Simplify right side
    9,913.97x = 77,520,885.71
  5. Step 5: Solve for x
    x = 77,520,885.71/9,913.97
  6. Step 6: Final answer
    x = 7,819.36

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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.