Home / 15,697.26-21,661.97-8,623.53

Finding the Fourth Proportional to 15,697.26, 21,661.97 and 8,623.53

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Solution

The fourth proportional to 15,697.26, 21,661.97 and 8,623.53 is: 11,900.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,697.26 : 21,661.97 = 8,623.53 : x
  2. Step 2: Convert to fraction form
    15,697.26/21,661.97 = 8,623.53/x
  3. Step 3: Cross multiply
    15,697.26x = 21,661.97 × 8,623.53
  4. Step 4: Simplify right side
    15,697.26x = 186,802,605.04
  5. Step 5: Solve for x
    x = 186,802,605.04/15,697.26
  6. Step 6: Final answer
    x = 11,900.33

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1.5x scale

Why These Related Problems?

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