Home / 12,349.90-18,512.70-6,104.80

Finding the Fourth Proportional to 12,349.90, 18,512.70 and 6,104.80

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Solution

The fourth proportional to 12,349.90, 18,512.70 and 6,104.80 is: 9,151.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,349.90 : 18,512.70 = 6,104.80 : x
  2. Step 2: Convert to fraction form
    12,349.90/18,512.70 = 6,104.80/x
  3. Step 3: Cross multiply
    12,349.90x = 18,512.70 × 6,104.80
  4. Step 4: Simplify right side
    12,349.90x = 113,016,330.96
  5. Step 5: Solve for x
    x = 113,016,330.96/12,349.90
  6. Step 6: Final answer
    x = 9,151.19

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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.