Home / 8,935.12-13,403.88-3,390.52

Finding the Fourth Proportional to 8,935.12, 13,403.88 and 3,390.52

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Solution

The fourth proportional to 8,935.12, 13,403.88 and 3,390.52 is: 5,086.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,935.12 : 13,403.88 = 3,390.52 : x
  2. Step 2: Convert to fraction form
    8,935.12/13,403.88 = 3,390.52/x
  3. Step 3: Cross multiply
    8,935.12x = 13,403.88 × 3,390.52
  4. Step 4: Simplify right side
    8,935.12x = 45,446,123.22
  5. Step 5: Solve for x
    x = 45,446,123.22/8,935.12
  6. Step 6: Final answer
    x = 5,086.24

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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.