Home / 9,489.12-14,234.48-3,647.40

Finding the Fourth Proportional to 9,489.12, 14,234.48 and 3,647.40

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Solution

The fourth proportional to 9,489.12, 14,234.48 and 3,647.40 is: 5,471.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,489.12 : 14,234.48 = 3,647.40 : x
  2. Step 2: Convert to fraction form
    9,489.12/14,234.48 = 3,647.40/x
  3. Step 3: Cross multiply
    9,489.12x = 14,234.48 × 3,647.40
  4. Step 4: Simplify right side
    9,489.12x = 51,918,842.35
  5. Step 5: Solve for x
    x = 51,918,842.35/9,489.12
  6. Step 6: Final answer
    x = 5,471.41

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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.