Home / 13,994.28-19,311.30-8,404.20

Finding the Fourth Proportional to 13,994.28, 19,311.30 and 8,404.20

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Solution

The fourth proportional to 13,994.28, 19,311.30 and 8,404.20 is: 11,597.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,994.28 : 19,311.30 = 8,404.20 : x
  2. Step 2: Convert to fraction form
    13,994.28/19,311.30 = 8,404.20/x
  3. Step 3: Cross multiply
    13,994.28x = 19,311.30 × 8,404.20
  4. Step 4: Simplify right side
    13,994.28x = 162,296,027.46
  5. Step 5: Solve for x
    x = 162,296,027.46/13,994.28
  6. Step 6: Final answer
    x = 11,597.31

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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.