Home / 9,180.45-12,668.98-5,403.59

Finding the Fourth Proportional to 9,180.45, 12,668.98 and 5,403.59

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Solution

The fourth proportional to 9,180.45, 12,668.98 and 5,403.59 is: 7,456.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,180.45 : 12,668.98 = 5,403.59 : x
  2. Step 2: Convert to fraction form
    9,180.45/12,668.98 = 5,403.59/x
  3. Step 3: Cross multiply
    9,180.45x = 12,668.98 × 5,403.59
  4. Step 4: Simplify right side
    9,180.45x = 68,457,973.64
  5. Step 5: Solve for x
    x = 68,457,973.64/9,180.45
  6. Step 6: Final answer
    x = 7,456.93

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.