Home / 12,130.48-18,194.82-7,231.24

Finding the Fourth Proportional to 12,130.48, 18,194.82 and 7,231.24

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Solution

The fourth proportional to 12,130.48, 18,194.82 and 7,231.24 is: 10,846.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,130.48 : 18,194.82 = 7,231.24 : x
  2. Step 2: Convert to fraction form
    12,130.48/18,194.82 = 7,231.24/x
  3. Step 3: Cross multiply
    12,130.48x = 18,194.82 × 7,231.24
  4. Step 4: Simplify right side
    12,130.48x = 131,571,110.18
  5. Step 5: Solve for x
    x = 131,571,110.18/12,130.48
  6. Step 6: Final answer
    x = 10,846.32

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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.