Home / 13,625.45-20,429.97-8,885.14

Finding the Fourth Proportional to 13,625.45, 20,429.97 and 8,885.14

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Solution

The fourth proportional to 13,625.45, 20,429.97 and 8,885.14 is: 13,322.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,625.45 : 20,429.97 = 8,885.14 : x
  2. Step 2: Convert to fraction form
    13,625.45/20,429.97 = 8,885.14/x
  3. Step 3: Cross multiply
    13,625.45x = 20,429.97 × 8,885.14
  4. Step 4: Simplify right side
    13,625.45x = 181,523,143.65
  5. Step 5: Solve for x
    x = 181,523,143.65/13,625.45
  6. Step 6: Final answer
    x = 13,322.36

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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.