Home / 12,122.10-18,187.74-5,881.80

Finding the Fourth Proportional to 12,122.10, 18,187.74 and 5,881.80

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Solution

The fourth proportional to 12,122.10, 18,187.74 and 5,881.80 is: 8,824.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,122.10 : 18,187.74 = 5,881.80 : x
  2. Step 2: Convert to fraction form
    12,122.10/18,187.74 = 5,881.80/x
  3. Step 3: Cross multiply
    12,122.10x = 18,187.74 × 5,881.80
  4. Step 4: Simplify right side
    12,122.10x = 106,976,649.13
  5. Step 5: Solve for x
    x = 106,976,649.13/12,122.10
  6. Step 6: Final answer
    x = 8,824.93

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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.