Home / 8,322.18-12,483.14-2,478.79

Finding the Fourth Proportional to 8,322.18, 12,483.14 and 2,478.79

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Solution

The fourth proportional to 8,322.18, 12,483.14 and 2,478.79 is: 3,718.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,322.18 : 12,483.14 = 2,478.79 : x
  2. Step 2: Convert to fraction form
    8,322.18/12,483.14 = 2,478.79/x
  3. Step 3: Cross multiply
    8,322.18x = 12,483.14 × 2,478.79
  4. Step 4: Simplify right side
    8,322.18x = 30,943,022.56
  5. Step 5: Solve for x
    x = 30,943,022.56/8,322.18
  6. Step 6: Final answer
    x = 3,718.14

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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.