Home / 8,121.56-11,207.63-4,585.91

Finding the Fourth Proportional to 8,121.56, 11,207.63 and 4,585.91

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Solution

The fourth proportional to 8,121.56, 11,207.63 and 4,585.91 is: 6,328.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,121.56 : 11,207.63 = 4,585.91 : x
  2. Step 2: Convert to fraction form
    8,121.56/11,207.63 = 4,585.91/x
  3. Step 3: Cross multiply
    8,121.56x = 11,207.63 × 4,585.91
  4. Step 4: Simplify right side
    8,121.56x = 51,397,137.92
  5. Step 5: Solve for x
    x = 51,397,137.92/8,121.56
  6. Step 6: Final answer
    x = 6,328.48

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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.