Home / 15,051.15-20,771.91-8,338.14

Finding the Fourth Proportional to 15,051.15, 20,771.91 and 8,338.14

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Solution

The fourth proportional to 15,051.15, 20,771.91 and 8,338.14 is: 11,507.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,051.15 : 20,771.91 = 8,338.14 : x
  2. Step 2: Convert to fraction form
    15,051.15/20,771.91 = 8,338.14/x
  3. Step 3: Cross multiply
    15,051.15x = 20,771.91 × 8,338.14
  4. Step 4: Simplify right side
    15,051.15x = 173,199,093.65
  5. Step 5: Solve for x
    x = 173,199,093.65/15,051.15
  6. Step 6: Final answer
    x = 11,507.37

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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.