Home / 8,823.68-13,232.64-2,979.20

Finding the Fourth Proportional to 8,823.68, 13,232.64 and 2,979.20

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Solution

The fourth proportional to 8,823.68, 13,232.64 and 2,979.20 is: 4,467.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,823.68 : 13,232.64 = 2,979.20 : x
  2. Step 2: Convert to fraction form
    8,823.68/13,232.64 = 2,979.20/x
  3. Step 3: Cross multiply
    8,823.68x = 13,232.64 × 2,979.20
  4. Step 4: Simplify right side
    8,823.68x = 39,422,681.09
  5. Step 5: Solve for x
    x = 39,422,681.09/8,823.68
  6. Step 6: Final answer
    x = 4,467.83

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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.