Home / 16,389.75-22,619.79-9,317.23

Finding the Fourth Proportional to 16,389.75, 22,619.79 and 9,317.23

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Solution

The fourth proportional to 16,389.75, 22,619.79 and 9,317.23 is: 12,858.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,389.75 : 22,619.79 = 9,317.23 : x
  2. Step 2: Convert to fraction form
    16,389.75/22,619.79 = 9,317.23/x
  3. Step 3: Cross multiply
    16,389.75x = 22,619.79 × 9,317.23
  4. Step 4: Simplify right side
    16,389.75x = 210,753,785.98
  5. Step 5: Solve for x
    x = 210,753,785.98/16,389.75
  6. Step 6: Final answer
    x = 12,858.88

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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.