Home / 17,638.35-26,459.32-5,158.61

Finding the Fourth Proportional to 17,638.35, 26,459.32 and 5,158.61

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Solution

The fourth proportional to 17,638.35, 26,459.32 and 5,158.61 is: 7,738.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,638.35 : 26,459.32 = 5,158.61 : x
  2. Step 2: Convert to fraction form
    17,638.35/26,459.32 = 5,158.61/x
  3. Step 3: Cross multiply
    17,638.35x = 26,459.32 × 5,158.61
  4. Step 4: Simplify right side
    17,638.35x = 136,493,312.75
  5. Step 5: Solve for x
    x = 136,493,312.75/17,638.35
  6. Step 6: Final answer
    x = 7,738.44

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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.