Home / 7,965.07-10,991.62-4,379.86

Finding the Fourth Proportional to 7,965.07, 10,991.62 and 4,379.86

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Solution

The fourth proportional to 7,965.07, 10,991.62 and 4,379.86 is: 6,044.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,965.07 : 10,991.62 = 4,379.86 : x
  2. Step 2: Convert to fraction form
    7,965.07/10,991.62 = 4,379.86/x
  3. Step 3: Cross multiply
    7,965.07x = 10,991.62 × 4,379.86
  4. Step 4: Simplify right side
    7,965.07x = 48,141,718.34
  5. Step 5: Solve for x
    x = 48,141,718.34/7,965.07
  6. Step 6: Final answer
    x = 6,044.11

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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.