Home / 18,237.60-27,345.45-7,131.05

Finding the Fourth Proportional to 18,237.60, 27,345.45 and 7,131.05

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Solution

The fourth proportional to 18,237.60, 27,345.45 and 7,131.05 is: 10,692.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,237.60 : 27,345.45 = 7,131.05 : x
  2. Step 2: Convert to fraction form
    18,237.60/27,345.45 = 7,131.05/x
  3. Step 3: Cross multiply
    18,237.60x = 27,345.45 × 7,131.05
  4. Step 4: Simplify right side
    18,237.60x = 195,001,634.50
  5. Step 5: Solve for x
    x = 195,001,634.50/18,237.60
  6. Step 6: Final answer
    x = 10,692.29

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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.