Home / 18,259.80-27,390.48-5,112.96

Finding the Fourth Proportional to 18,259.80, 27,390.48 and 5,112.96

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Solution

The fourth proportional to 18,259.80, 27,390.48 and 5,112.96 is: 7,669.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,259.80 : 27,390.48 = 5,112.96 : x
  2. Step 2: Convert to fraction form
    18,259.80/27,390.48 = 5,112.96/x
  3. Step 3: Cross multiply
    18,259.80x = 27,390.48 × 5,112.96
  4. Step 4: Simplify right side
    18,259.80x = 140,046,428.62
  5. Step 5: Solve for x
    x = 140,046,428.62/18,259.80
  6. Step 6: Final answer
    x = 7,669.66

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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.