Home / 11,720.30-16,166.79-9,482.27

Finding the Fourth Proportional to 11,720.30, 16,166.79 and 9,482.27

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Solution

The fourth proportional to 11,720.30, 16,166.79 and 9,482.27 is: 13,079.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,720.30 : 16,166.79 = 9,482.27 : x
  2. Step 2: Convert to fraction form
    11,720.30/16,166.79 = 9,482.27/x
  3. Step 3: Cross multiply
    11,720.30x = 16,166.79 × 9,482.27
  4. Step 4: Simplify right side
    11,720.30x = 153,297,786.98
  5. Step 5: Solve for x
    x = 153,297,786.98/11,720.30
  6. Step 6: Final answer
    x = 13,079.69

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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.