Home / 8,322.12-11,479.25-6,328.31

Finding the Fourth Proportional to 8,322.12, 11,479.25 and 6,328.31

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Solution

The fourth proportional to 8,322.12, 11,479.25 and 6,328.31 is: 8,729.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,322.12 : 11,479.25 = 6,328.31 : x
  2. Step 2: Convert to fraction form
    8,322.12/11,479.25 = 6,328.31/x
  3. Step 3: Cross multiply
    8,322.12x = 11,479.25 × 6,328.31
  4. Step 4: Simplify right side
    8,322.12x = 72,644,210.99
  5. Step 5: Solve for x
    x = 72,644,210.99/8,322.12
  6. Step 6: Final answer
    x = 8,729.05

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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.