Home / 8,689.30-13,026.22-3,141.41

Finding the Fourth Proportional to 8,689.30, 13,026.22 and 3,141.41

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Solution

The fourth proportional to 8,689.30, 13,026.22 and 3,141.41 is: 4,709.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,689.30 : 13,026.22 = 3,141.41 : x
  2. Step 2: Convert to fraction form
    8,689.30/13,026.22 = 3,141.41/x
  3. Step 3: Cross multiply
    8,689.30x = 13,026.22 × 3,141.41
  4. Step 4: Simplify right side
    8,689.30x = 40,920,661.42
  5. Step 5: Solve for x
    x = 40,920,661.42/8,689.30
  6. Step 6: Final answer
    x = 4,709.32

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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.