Home / 10,524.80-15,787.21-3,129.33

Finding the Fourth Proportional to 10,524.80, 15,787.21 and 3,129.33

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Solution

The fourth proportional to 10,524.80, 15,787.21 and 3,129.33 is: 4,694.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,524.80 : 15,787.21 = 3,129.33 : x
  2. Step 2: Convert to fraction form
    10,524.80/15,787.21 = 3,129.33/x
  3. Step 3: Cross multiply
    10,524.80x = 15,787.21 × 3,129.33
  4. Step 4: Simplify right side
    10,524.80x = 49,403,389.87
  5. Step 5: Solve for x
    x = 49,403,389.87/10,524.80
  6. Step 6: Final answer
    x = 4,694.00

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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.