Home / 16,391.34-22,620.06-9,317.79

Finding the Fourth Proportional to 16,391.34, 22,620.06 and 9,317.79

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Solution

The fourth proportional to 16,391.34, 22,620.06 and 9,317.79 is: 12,858.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,391.34 : 22,620.06 = 9,317.79 : x
  2. Step 2: Convert to fraction form
    16,391.34/22,620.06 = 9,317.79/x
  3. Step 3: Cross multiply
    16,391.34x = 22,620.06 × 9,317.79
  4. Step 4: Simplify right side
    16,391.34x = 210,768,968.87
  5. Step 5: Solve for x
    x = 210,768,968.87/16,391.34
  6. Step 6: Final answer
    x = 12,858.56

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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.