Home / 14,893.11-20,538.78-10,120.21

Finding the Fourth Proportional to 14,893.11, 20,538.78 and 10,120.21

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Solution

The fourth proportional to 14,893.11, 20,538.78 and 10,120.21 is: 13,956.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,893.11 : 20,538.78 = 10,120.21 : x
  2. Step 2: Convert to fraction form
    14,893.11/20,538.78 = 10,120.21/x
  3. Step 3: Cross multiply
    14,893.11x = 20,538.78 × 10,120.21
  4. Step 4: Simplify right side
    14,893.11x = 207,856,766.74
  5. Step 5: Solve for x
    x = 207,856,766.74/14,893.11
  6. Step 6: Final answer
    x = 13,956.57

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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.