Home / 19,771.17-27,283.18-11,273.55

Finding the Fourth Proportional to 19,771.17, 27,283.18 and 11,273.55

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Solution

The fourth proportional to 19,771.17, 27,283.18 and 11,273.55 is: 15,556.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,771.17 : 27,283.18 = 11,273.55 : x
  2. Step 2: Convert to fraction form
    19,771.17/27,283.18 = 11,273.55/x
  3. Step 3: Cross multiply
    19,771.17x = 27,283.18 × 11,273.55
  4. Step 4: Simplify right side
    19,771.17x = 307,578,237.52
  5. Step 5: Solve for x
    x = 307,578,237.52/19,771.17
  6. Step 6: Final answer
    x = 15,556.91

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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.