Home / 15,544.13-21,450.89-8,470.55

Finding the Fourth Proportional to 15,544.13, 21,450.89 and 8,470.55

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Solution

The fourth proportional to 15,544.13, 21,450.89 and 8,470.55 is: 11,689.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,544.13 : 21,450.89 = 8,470.55 : x
  2. Step 2: Convert to fraction form
    15,544.13/21,450.89 = 8,470.55/x
  3. Step 3: Cross multiply
    15,544.13x = 21,450.89 × 8,470.55
  4. Step 4: Simplify right side
    15,544.13x = 181,700,911.09
  5. Step 5: Solve for x
    x = 181,700,911.09/15,544.13
  6. Step 6: Final answer
    x = 11,689.36

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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.