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Finding the Fourth Proportional to 8,392.22, 11,582.95 and 6,399.22

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Solution

The fourth proportional to 8,392.22, 11,582.95 and 6,399.22 is: 8,832.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,392.22 : 11,582.95 = 6,399.22 : x
  2. Step 2: Convert to fraction form
    8,392.22/11,582.95 = 6,399.22/x
  3. Step 3: Cross multiply
    8,392.22x = 11,582.95 × 6,399.22
  4. Step 4: Simplify right side
    8,392.22x = 74,121,800.34
  5. Step 5: Solve for x
    x = 74,121,800.34/8,392.22
  6. Step 6: Final answer
    x = 8,832.20

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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.