Home / 17,415.56-26,120.79-5,570.66

Finding the Fourth Proportional to 17,415.56, 26,120.79 and 5,570.66

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Solution

The fourth proportional to 17,415.56, 26,120.79 and 5,570.66 is: 8,355.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,415.56 : 26,120.79 = 5,570.66 : x
  2. Step 2: Convert to fraction form
    17,415.56/26,120.79 = 5,570.66/x
  3. Step 3: Cross multiply
    17,415.56x = 26,120.79 × 5,570.66
  4. Step 4: Simplify right side
    17,415.56x = 145,510,040.02
  5. Step 5: Solve for x
    x = 145,510,040.02/17,415.56
  6. Step 6: Final answer
    x = 8,355.17

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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.