Home / 8,351.29-12,525.31-5,385.07

Finding the Fourth Proportional to 8,351.29, 12,525.31 and 5,385.07

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Solution

The fourth proportional to 8,351.29, 12,525.31 and 5,385.07 is: 8,076.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,351.29 : 12,525.31 = 5,385.07 : x
  2. Step 2: Convert to fraction form
    8,351.29/12,525.31 = 5,385.07/x
  3. Step 3: Cross multiply
    8,351.29x = 12,525.31 × 5,385.07
  4. Step 4: Simplify right side
    8,351.29x = 67,449,671.12
  5. Step 5: Solve for x
    x = 67,449,671.12/8,351.29
  6. Step 6: Final answer
    x = 8,076.56

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1.5x scale

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.