Home / 13,934.85-19,228.64-8,269.31

Finding the Fourth Proportional to 13,934.85, 19,228.64 and 8,269.31

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Solution

The fourth proportional to 13,934.85, 19,228.64 and 8,269.31 is: 11,410.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,934.85 : 19,228.64 = 8,269.31 : x
  2. Step 2: Convert to fraction form
    13,934.85/19,228.64 = 8,269.31/x
  3. Step 3: Cross multiply
    13,934.85x = 19,228.64 × 8,269.31
  4. Step 4: Simplify right side
    13,934.85x = 159,007,447.55
  5. Step 5: Solve for x
    x = 159,007,447.55/13,934.85
  6. Step 6: Final answer
    x = 11,410.78

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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.