Home / 18,227.02-27,278.79-11,211.49

Finding the Fourth Proportional to 18,227.02, 27,278.79 and 11,211.49

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Solution

The fourth proportional to 18,227.02, 27,278.79 and 11,211.49 is: 16,779.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,227.02 : 27,278.79 = 11,211.49 : x
  2. Step 2: Convert to fraction form
    18,227.02/27,278.79 = 11,211.49/x
  3. Step 3: Cross multiply
    18,227.02x = 27,278.79 × 11,211.49
  4. Step 4: Simplify right side
    18,227.02x = 305,835,881.30
  5. Step 5: Solve for x
    x = 305,835,881.30/18,227.02
  6. Step 6: Final answer
    x = 16,779.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.