Home / 8,322.24-12,485.46-2,478.66

Finding the Fourth Proportional to 8,322.24, 12,485.46 and 2,478.66

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Solution

The fourth proportional to 8,322.24, 12,485.46 and 2,478.66 is: 3,718.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,322.24 : 12,485.46 = 2,478.66 : x
  2. Step 2: Convert to fraction form
    8,322.24/12,485.46 = 2,478.66/x
  3. Step 3: Cross multiply
    8,322.24x = 12,485.46 × 2,478.66
  4. Step 4: Simplify right side
    8,322.24x = 30,947,210.28
  5. Step 5: Solve for x
    x = 30,947,210.28/8,322.24
  6. Step 6: Final answer
    x = 3,718.62

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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.