Home / 19,882.40-27,440.44-11,503.76

Finding the Fourth Proportional to 19,882.40, 27,440.44 and 11,503.76

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Solution

The fourth proportional to 19,882.40, 27,440.44 and 11,503.76 is: 15,876.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,882.40 : 27,440.44 = 11,503.76 : x
  2. Step 2: Convert to fraction form
    19,882.40/27,440.44 = 11,503.76/x
  3. Step 3: Cross multiply
    19,882.40x = 27,440.44 × 11,503.76
  4. Step 4: Simplify right side
    19,882.40x = 315,668,070.09
  5. Step 5: Solve for x
    x = 315,668,070.09/19,882.40
  6. Step 6: Final answer
    x = 15,876.76

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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.