Home / 19,861.88-27,404.94-11,902.76

Finding the Fourth Proportional to 19,861.88, 27,404.94 and 11,902.76

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Solution

The fourth proportional to 19,861.88, 27,404.94 and 11,902.76 is: 16,423.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,861.88 : 27,404.94 = 11,902.76 : x
  2. Step 2: Convert to fraction form
    19,861.88/27,404.94 = 11,902.76/x
  3. Step 3: Cross multiply
    19,861.88x = 27,404.94 × 11,902.76
  4. Step 4: Simplify right side
    19,861.88x = 326,194,423.63
  5. Step 5: Solve for x
    x = 326,194,423.63/19,861.88
  6. Step 6: Final answer
    x = 16,423.14

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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.