Home / 11,343.20-15,651.32-6,626.57

Finding the Fourth Proportional to 11,343.20, 15,651.32 and 6,626.57

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Solution

The fourth proportional to 11,343.20, 15,651.32 and 6,626.57 is: 9,143.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,343.20 : 15,651.32 = 6,626.57 : x
  2. Step 2: Convert to fraction form
    11,343.20/15,651.32 = 6,626.57/x
  3. Step 3: Cross multiply
    11,343.20x = 15,651.32 × 6,626.57
  4. Step 4: Simplify right side
    11,343.20x = 103,714,456.18
  5. Step 5: Solve for x
    x = 103,714,456.18/11,343.20
  6. Step 6: Final answer
    x = 9,143.32

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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.