Home / 19,948.74-27,516.20-12,288.09

Finding the Fourth Proportional to 19,948.74, 27,516.20 and 12,288.09

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Solution

The fourth proportional to 19,948.74, 27,516.20 and 12,288.09 is: 16,949.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,948.74 : 27,516.20 = 12,288.09 : x
  2. Step 2: Convert to fraction form
    19,948.74/27,516.20 = 12,288.09/x
  3. Step 3: Cross multiply
    19,948.74x = 27,516.20 × 12,288.09
  4. Step 4: Simplify right side
    19,948.74x = 338,121,429.02
  5. Step 5: Solve for x
    x = 338,121,429.02/19,948.74
  6. Step 6: Final answer
    x = 16,949.52

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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.