Home / 11,317.71-15,620.37-6,536.79

Finding the Fourth Proportional to 11,317.71, 15,620.37 and 6,536.79

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Solution

The fourth proportional to 11,317.71, 15,620.37 and 6,536.79 is: 9,021.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,317.71 : 15,620.37 = 6,536.79 : x
  2. Step 2: Convert to fraction form
    11,317.71/15,620.37 = 6,536.79/x
  3. Step 3: Cross multiply
    11,317.71x = 15,620.37 × 6,536.79
  4. Step 4: Simplify right side
    11,317.71x = 102,107,045.73
  5. Step 5: Solve for x
    x = 102,107,045.73/11,317.71
  6. Step 6: Final answer
    x = 9,021.89

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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.