Home / 12,924.64-19,395.68-8,310.88

Finding the Fourth Proportional to 12,924.64, 19,395.68 and 8,310.88

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Solution

The fourth proportional to 12,924.64, 19,395.68 and 8,310.88 is: 12,471.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,924.64 : 19,395.68 = 8,310.88 : x
  2. Step 2: Convert to fraction form
    12,924.64/19,395.68 = 8,310.88/x
  3. Step 3: Cross multiply
    12,924.64x = 19,395.68 × 8,310.88
  4. Step 4: Simplify right side
    12,924.64x = 161,195,169.00
  5. Step 5: Solve for x
    x = 161,195,169.00/12,924.64
  6. Step 6: Final answer
    x = 12,471.93

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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.