Home / 18,228.02-27,280.29-11,212.49

Finding the Fourth Proportional to 18,228.02, 27,280.29 and 11,212.49

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Solution

The fourth proportional to 18,228.02, 27,280.29 and 11,212.49 is: 16,780.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,228.02 : 27,280.29 = 11,212.49 : x
  2. Step 2: Convert to fraction form
    18,228.02/27,280.29 = 11,212.49/x
  3. Step 3: Cross multiply
    18,228.02x = 27,280.29 × 11,212.49
  4. Step 4: Simplify right side
    18,228.02x = 305,879,978.82
  5. Step 5: Solve for x
    x = 305,879,978.82/18,228.02
  6. Step 6: Final answer
    x = 16,780.76

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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.