Home / 10,872.22-15,003.24-6,156.51

Finding the Fourth Proportional to 10,872.22, 15,003.24 and 6,156.51

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Solution

The fourth proportional to 10,872.22, 15,003.24 and 6,156.51 is: 8,495.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,872.22 : 15,003.24 = 6,156.51 : x
  2. Step 2: Convert to fraction form
    10,872.22/15,003.24 = 6,156.51/x
  3. Step 3: Cross multiply
    10,872.22x = 15,003.24 × 6,156.51
  4. Step 4: Simplify right side
    10,872.22x = 92,367,649.99
  5. Step 5: Solve for x
    x = 92,367,649.99/10,872.22
  6. Step 6: Final answer
    x = 8,495.75

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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.