Home / 12,119.64-18,166.48-6,270.36

Finding the Fourth Proportional to 12,119.64, 18,166.48 and 6,270.36

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Solution

The fourth proportional to 12,119.64, 18,166.48 and 6,270.36 is: 9,398.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,119.64 : 18,166.48 = 6,270.36 : x
  2. Step 2: Convert to fraction form
    12,119.64/18,166.48 = 6,270.36/x
  3. Step 3: Cross multiply
    12,119.64x = 18,166.48 × 6,270.36
  4. Step 4: Simplify right side
    12,119.64x = 113,910,369.53
  5. Step 5: Solve for x
    x = 113,910,369.53/12,119.64
  6. Step 6: Final answer
    x = 9,398.82

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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.