Home / 10,993.86-15,172.52-6,279.66

Finding the Fourth Proportional to 10,993.86, 15,172.52 and 6,279.66

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Solution

The fourth proportional to 10,993.86, 15,172.52 and 6,279.66 is: 8,666.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,993.86 : 15,172.52 = 6,279.66 : x
  2. Step 2: Convert to fraction form
    10,993.86/15,172.52 = 6,279.66/x
  3. Step 3: Cross multiply
    10,993.86x = 15,172.52 × 6,279.66
  4. Step 4: Simplify right side
    10,993.86x = 95,278,235.54
  5. Step 5: Solve for x
    x = 95,278,235.54/10,993.86
  6. Step 6: Final answer
    x = 8,666.50

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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.