Home / 16,990.09-23,446.33-9,538.09

Finding the Fourth Proportional to 16,990.09, 23,446.33 and 9,538.09

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Solution

The fourth proportional to 16,990.09, 23,446.33 and 9,538.09 is: 13,162.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,990.09 : 23,446.33 = 9,538.09 : x
  2. Step 2: Convert to fraction form
    16,990.09/23,446.33 = 9,538.09/x
  3. Step 3: Cross multiply
    16,990.09x = 23,446.33 × 9,538.09
  4. Step 4: Simplify right side
    16,990.09x = 223,633,287.67
  5. Step 5: Solve for x
    x = 223,633,287.67/16,990.09
  6. Step 6: Final answer
    x = 13,162.57

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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.