Home / 11,872.64-16,391.84-7,625.72

Finding the Fourth Proportional to 11,872.64, 16,391.84 and 7,625.72

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Solution

The fourth proportional to 11,872.64, 16,391.84 and 7,625.72 is: 10,528.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,872.64 : 16,391.84 = 7,625.72 : x
  2. Step 2: Convert to fraction form
    11,872.64/16,391.84 = 7,625.72/x
  3. Step 3: Cross multiply
    11,872.64x = 16,391.84 × 7,625.72
  4. Step 4: Simplify right side
    11,872.64x = 124,999,582.12
  5. Step 5: Solve for x
    x = 124,999,582.12/11,872.64
  6. Step 6: Final answer
    x = 10,528.37

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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.