Home / 13,191.49-19,773.57-8,249.78

Finding the Fourth Proportional to 13,191.49, 19,773.57 and 8,249.78

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Solution

The fourth proportional to 13,191.49, 19,773.57 and 8,249.78 is: 12,366.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,191.49 : 19,773.57 = 8,249.78 : x
  2. Step 2: Convert to fraction form
    13,191.49/19,773.57 = 8,249.78/x
  3. Step 3: Cross multiply
    13,191.49x = 19,773.57 × 8,249.78
  4. Step 4: Simplify right side
    13,191.49x = 163,127,636.28
  5. Step 5: Solve for x
    x = 163,127,636.28/13,191.49
  6. Step 6: Final answer
    x = 12,366.13

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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.