Home / 16,991.70-23,447.76-9,438.51

Finding the Fourth Proportional to 16,991.70, 23,447.76 and 9,438.51

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Solution

The fourth proportional to 16,991.70, 23,447.76 and 9,438.51 is: 13,024.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,991.70 : 23,447.76 = 9,438.51 : x
  2. Step 2: Convert to fraction form
    16,991.70/23,447.76 = 9,438.51/x
  3. Step 3: Cross multiply
    16,991.70x = 23,447.76 × 9,438.51
  4. Step 4: Simplify right side
    16,991.70x = 221,311,917.24
  5. Step 5: Solve for x
    x = 221,311,917.24/16,991.70
  6. Step 6: Final answer
    x = 13,024.71

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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.