Home / 7,161.20-10,713.08-5,931

Finding the Fourth Proportional to 7,161.20, 10,713.08 and 5,931

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Solution

The fourth proportional to 7,161.20, 10,713.08 and 5,931 is: 8,872.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,161.20 : 10,713.08 = 5,931 : x
  2. Step 2: Convert to fraction form
    7,161.20/10,713.08 = 5,931/x
  3. Step 3: Cross multiply
    7,161.20x = 10,713.08 × 5,931
  4. Step 4: Simplify right side
    7,161.20x = 63,539,247.83
  5. Step 5: Solve for x
    x = 63,539,247.83/7,161.20
  6. Step 6: Final answer
    x = 8,872.72

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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.