Home / 15,161.83-20,922.66-8,448.19

Finding the Fourth Proportional to 15,161.83, 20,922.66 and 8,448.19

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Solution

The fourth proportional to 15,161.83, 20,922.66 and 8,448.19 is: 11,658.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,161.83 : 20,922.66 = 8,448.19 : x
  2. Step 2: Convert to fraction form
    15,161.83/20,922.66 = 8,448.19/x
  3. Step 3: Cross multiply
    15,161.83x = 20,922.66 × 8,448.19
  4. Step 4: Simplify right side
    15,161.83x = 176,758,554.68
  5. Step 5: Solve for x
    x = 176,758,554.68/15,161.83
  6. Step 6: Final answer
    x = 11,658.13

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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.