Home / 17,111.40-25,686.30-10,189.80

Finding the Fourth Proportional to 17,111.40, 25,686.30 and 10,189.80

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Solution

The fourth proportional to 17,111.40, 25,686.30 and 10,189.80 is: 15,296.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,111.40 : 25,686.30 = 10,189.80 : x
  2. Step 2: Convert to fraction form
    17,111.40/25,686.30 = 10,189.80/x
  3. Step 3: Cross multiply
    17,111.40x = 25,686.30 × 10,189.80
  4. Step 4: Simplify right side
    17,111.40x = 261,738,259.74
  5. Step 5: Solve for x
    x = 261,738,259.74/17,111.40
  6. Step 6: Final answer
    x = 15,296.13

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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.