Home / 11,887.49-17,832.59-3,122.57

Finding the Fourth Proportional to 11,887.49, 17,832.59 and 3,122.57

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Solution

The fourth proportional to 11,887.49, 17,832.59 and 3,122.57 is: 4,684.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,887.49 : 17,832.59 = 3,122.57 : x
  2. Step 2: Convert to fraction form
    11,887.49/17,832.59 = 3,122.57/x
  3. Step 3: Cross multiply
    11,887.49x = 17,832.59 × 3,122.57
  4. Step 4: Simplify right side
    11,887.49x = 55,683,405.78
  5. Step 5: Solve for x
    x = 55,683,405.78/11,887.49
  6. Step 6: Final answer
    x = 4,684.20

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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.