Home / 13,124.11-18,110.82-7,458.76

Finding the Fourth Proportional to 13,124.11, 18,110.82 and 7,458.76

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Solution

The fourth proportional to 13,124.11, 18,110.82 and 7,458.76 is: 10,292.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,124.11 : 18,110.82 = 7,458.76 : x
  2. Step 2: Convert to fraction form
    13,124.11/18,110.82 = 7,458.76/x
  3. Step 3: Cross multiply
    13,124.11x = 18,110.82 × 7,458.76
  4. Step 4: Simplify right side
    13,124.11x = 135,084,310.39
  5. Step 5: Solve for x
    x = 135,084,310.39/13,124.11
  6. Step 6: Final answer
    x = 10,292.83

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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.