Home / 13,992.64-19,311.21-10,449.70

Finding the Fourth Proportional to 13,992.64, 19,311.21 and 10,449.70

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Solution

The fourth proportional to 13,992.64, 19,311.21 and 10,449.70 is: 14,421.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,992.64 : 19,311.21 = 10,449.70 : x
  2. Step 2: Convert to fraction form
    13,992.64/19,311.21 = 10,449.70/x
  3. Step 3: Cross multiply
    13,992.64x = 19,311.21 × 10,449.70
  4. Step 4: Simplify right side
    13,992.64x = 201,796,351.14
  5. Step 5: Solve for x
    x = 201,796,351.14/13,992.64
  6. Step 6: Final answer
    x = 14,421.61

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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.