Home / 17,140.20-25,707.06-7,279.80

Finding the Fourth Proportional to 17,140.20, 25,707.06 and 7,279.80

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Solution

The fourth proportional to 17,140.20, 25,707.06 and 7,279.80 is: 10,918.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,140.20 : 25,707.06 = 7,279.80 : x
  2. Step 2: Convert to fraction form
    17,140.20/25,707.06 = 7,279.80/x
  3. Step 3: Cross multiply
    17,140.20x = 25,707.06 × 7,279.80
  4. Step 4: Simplify right side
    17,140.20x = 187,142,255.39
  5. Step 5: Solve for x
    x = 187,142,255.39/17,140.20
  6. Step 6: Final answer
    x = 10,918.32

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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.