Home / 17,540.40-26,310.60-7,669.20

Finding the Fourth Proportional to 17,540.40, 26,310.60 and 7,669.20

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Solution

The fourth proportional to 17,540.40, 26,310.60 and 7,669.20 is: 11,503.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,540.40 : 26,310.60 = 7,669.20 : x
  2. Step 2: Convert to fraction form
    17,540.40/26,310.60 = 7,669.20/x
  3. Step 3: Cross multiply
    17,540.40x = 26,310.60 × 7,669.20
  4. Step 4: Simplify right side
    17,540.40x = 201,781,253.52
  5. Step 5: Solve for x
    x = 201,781,253.52/17,540.40
  6. Step 6: Final answer
    x = 11,503.80

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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.