Home / 12,140.82-18,206.24-4,744.22

Finding the Fourth Proportional to 12,140.82, 18,206.24 and 4,744.22

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Solution

The fourth proportional to 12,140.82, 18,206.24 and 4,744.22 is: 7,114.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,140.82 : 18,206.24 = 4,744.22 : x
  2. Step 2: Convert to fraction form
    12,140.82/18,206.24 = 4,744.22/x
  3. Step 3: Cross multiply
    12,140.82x = 18,206.24 × 4,744.22
  4. Step 4: Simplify right side
    12,140.82x = 86,374,293.18
  5. Step 5: Solve for x
    x = 86,374,293.18/12,140.82
  6. Step 6: Final answer
    x = 7,114.37

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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.