Home / 9,519.12-13,135.14-5,540.94

Finding the Fourth Proportional to 9,519.12, 13,135.14 and 5,540.94

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Solution

The fourth proportional to 9,519.12, 13,135.14 and 5,540.94 is: 7,645.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,519.12 : 13,135.14 = 5,540.94 : x
  2. Step 2: Convert to fraction form
    9,519.12/13,135.14 = 5,540.94/x
  3. Step 3: Cross multiply
    9,519.12x = 13,135.14 × 5,540.94
  4. Step 4: Simplify right side
    9,519.12x = 72,781,022.63
  5. Step 5: Solve for x
    x = 72,781,022.63/9,519.12
  6. Step 6: Final answer
    x = 7,645.77

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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.