Home / 17,708.80-26,563.20-11,142.40

Finding the Fourth Proportional to 17,708.80, 26,563.20 and 11,142.40

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Solution

The fourth proportional to 17,708.80, 26,563.20 and 11,142.40 is: 16,713.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,708.80 : 26,563.20 = 11,142.40 : x
  2. Step 2: Convert to fraction form
    17,708.80/26,563.20 = 11,142.40/x
  3. Step 3: Cross multiply
    17,708.80x = 26,563.20 × 11,142.40
  4. Step 4: Simplify right side
    17,708.80x = 295,977,799.68
  5. Step 5: Solve for x
    x = 295,977,799.68/17,708.80
  6. Step 6: Final answer
    x = 16,713.60

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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.