Home / 18,548.75-27,753.37-13,012.90

Finding the Fourth Proportional to 18,548.75, 27,753.37 and 13,012.90

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Solution

The fourth proportional to 18,548.75, 27,753.37 and 13,012.90 is: 19,470.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,548.75 : 27,753.37 = 13,012.90 : x
  2. Step 2: Convert to fraction form
    18,548.75/27,753.37 = 13,012.90/x
  3. Step 3: Cross multiply
    18,548.75x = 27,753.37 × 13,012.90
  4. Step 4: Simplify right side
    18,548.75x = 361,151,828.47
  5. Step 5: Solve for x
    x = 361,151,828.47/18,548.75
  6. Step 6: Final answer
    x = 19,470.41

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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.