Home / 17,129.12-25,693.72-5,443.36

Finding the Fourth Proportional to 17,129.12, 25,693.72 and 5,443.36

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Solution

The fourth proportional to 17,129.12, 25,693.72 and 5,443.36 is: 8,165.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,129.12 : 25,693.72 = 5,443.36 : x
  2. Step 2: Convert to fraction form
    17,129.12/25,693.72 = 5,443.36/x
  3. Step 3: Cross multiply
    17,129.12x = 25,693.72 × 5,443.36
  4. Step 4: Simplify right side
    17,129.12x = 139,860,167.70
  5. Step 5: Solve for x
    x = 139,860,167.70/17,129.12
  6. Step 6: Final answer
    x = 8,165.05

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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.