Home / 13,625.24-20,442.72-7,786.76

Finding the Fourth Proportional to 13,625.24, 20,442.72 and 7,786.76

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Solution

The fourth proportional to 13,625.24, 20,442.72 and 7,786.76 is: 11,682.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,625.24 : 20,442.72 = 7,786.76 : x
  2. Step 2: Convert to fraction form
    13,625.24/20,442.72 = 7,786.76/x
  3. Step 3: Cross multiply
    13,625.24x = 20,442.72 × 7,786.76
  4. Step 4: Simplify right side
    13,625.24x = 159,182,554.39
  5. Step 5: Solve for x
    x = 159,182,554.39/13,625.24
  6. Step 6: Final answer
    x = 11,682.92

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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.