Home / 15,044.21-20,761.30-8,329.64

Finding the Fourth Proportional to 15,044.21, 20,761.30 and 8,329.64

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Solution

The fourth proportional to 15,044.21, 20,761.30 and 8,329.64 is: 11,495.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,044.21 : 20,761.30 = 8,329.64 : x
  2. Step 2: Convert to fraction form
    15,044.21/20,761.30 = 8,329.64/x
  3. Step 3: Cross multiply
    15,044.21x = 20,761.30 × 8,329.64
  4. Step 4: Simplify right side
    15,044.21x = 172,934,113.28
  5. Step 5: Solve for x
    x = 172,934,113.28/15,044.21
  6. Step 6: Final answer
    x = 11,495.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.