Home / 17,840.32-26,786.40-13,174.72

Finding the Fourth Proportional to 17,840.32, 26,786.40 and 13,174.72

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Solution

The fourth proportional to 17,840.32, 26,786.40 and 13,174.72 is: 19,781.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,840.32 : 26,786.40 = 13,174.72 : x
  2. Step 2: Convert to fraction form
    17,840.32/26,786.40 = 13,174.72/x
  3. Step 3: Cross multiply
    17,840.32x = 26,786.40 × 13,174.72
  4. Step 4: Simplify right side
    17,840.32x = 352,903,319.81
  5. Step 5: Solve for x
    x = 352,903,319.81/17,840.32
  6. Step 6: Final answer
    x = 19,781.22

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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.