Home / 12,230.40-16,881.96-7,194.36

Finding the Fourth Proportional to 12,230.40, 16,881.96 and 7,194.36

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Solution

The fourth proportional to 12,230.40, 16,881.96 and 7,194.36 is: 9,930.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,230.40 : 16,881.96 = 7,194.36 : x
  2. Step 2: Convert to fraction form
    12,230.40/16,881.96 = 7,194.36/x
  3. Step 3: Cross multiply
    12,230.40x = 16,881.96 × 7,194.36
  4. Step 4: Simplify right side
    12,230.40x = 121,454,897.75
  5. Step 5: Solve for x
    x = 121,454,897.75/12,230.40
  6. Step 6: Final answer
    x = 9,930.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.