Home / 17,655.16-26,469.90-8,290.36

Finding the Fourth Proportional to 17,655.16, 26,469.90 and 8,290.36

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Solution

The fourth proportional to 17,655.16, 26,469.90 and 8,290.36 is: 12,429.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,655.16 : 26,469.90 = 8,290.36 : x
  2. Step 2: Convert to fraction form
    17,655.16/26,469.90 = 8,290.36/x
  3. Step 3: Cross multiply
    17,655.16x = 26,469.90 × 8,290.36
  4. Step 4: Simplify right side
    17,655.16x = 219,444,867.81
  5. Step 5: Solve for x
    x = 219,444,867.81/17,655.16
  6. Step 6: Final answer
    x = 12,429.51

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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.