Home / 13,995.18-19,311.82-8,329.14

Finding the Fourth Proportional to 13,995.18, 19,311.82 and 8,329.14

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Solution

The fourth proportional to 13,995.18, 19,311.82 and 8,329.14 is: 11,493.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,995.18 : 19,311.82 = 8,329.14 : x
  2. Step 2: Convert to fraction form
    13,995.18/19,311.82 = 8,329.14/x
  3. Step 3: Cross multiply
    13,995.18x = 19,311.82 × 8,329.14
  4. Step 4: Simplify right side
    13,995.18x = 160,850,852.43
  5. Step 5: Solve for x
    x = 160,850,852.43/13,995.18
  6. Step 6: Final answer
    x = 11,493.30

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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.