Home / 8,639.30-12,960.02-3,093.24

Finding the Fourth Proportional to 8,639.30, 12,960.02 and 3,093.24

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Solution

The fourth proportional to 8,639.30, 12,960.02 and 3,093.24 is: 4,640.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,639.30 : 12,960.02 = 3,093.24 : x
  2. Step 2: Convert to fraction form
    8,639.30/12,960.02 = 3,093.24/x
  3. Step 3: Cross multiply
    8,639.30x = 12,960.02 × 3,093.24
  4. Step 4: Simplify right side
    8,639.30x = 40,088,452.26
  5. Step 5: Solve for x
    x = 40,088,452.26/8,639.30
  6. Step 6: Final answer
    x = 4,640.24

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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.