Home / 15,299.74-21,141.03-11,951.02

Finding the Fourth Proportional to 15,299.74, 21,141.03 and 11,951.02

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Solution

The fourth proportional to 15,299.74, 21,141.03 and 11,951.02 is: 16,513.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,299.74 : 21,141.03 = 11,951.02 : x
  2. Step 2: Convert to fraction form
    15,299.74/21,141.03 = 11,951.02/x
  3. Step 3: Cross multiply
    15,299.74x = 21,141.03 × 11,951.02
  4. Step 4: Simplify right side
    15,299.74x = 252,656,872.35
  5. Step 5: Solve for x
    x = 252,656,872.35/15,299.74
  6. Step 6: Final answer
    x = 16,513.80

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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.