Home / 17,670.56-26,505.96-5,190.80

Finding the Fourth Proportional to 17,670.56, 26,505.96 and 5,190.80

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Solution

The fourth proportional to 17,670.56, 26,505.96 and 5,190.80 is: 7,786.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,670.56 : 26,505.96 = 5,190.80 : x
  2. Step 2: Convert to fraction form
    17,670.56/26,505.96 = 5,190.80/x
  3. Step 3: Cross multiply
    17,670.56x = 26,505.96 × 5,190.80
  4. Step 4: Simplify right side
    17,670.56x = 137,587,137.17
  5. Step 5: Solve for x
    x = 137,587,137.17/17,670.56
  6. Step 6: Final answer
    x = 7,786.24

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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.