Home / 15,379.70-23,067.72-4,991.45

Finding the Fourth Proportional to 15,379.70, 23,067.72 and 4,991.45

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Solution

The fourth proportional to 15,379.70, 23,067.72 and 4,991.45 is: 7,486.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,379.70 : 23,067.72 = 4,991.45 : x
  2. Step 2: Convert to fraction form
    15,379.70/23,067.72 = 4,991.45/x
  3. Step 3: Cross multiply
    15,379.70x = 23,067.72 × 4,991.45
  4. Step 4: Simplify right side
    15,379.70x = 115,141,255.66
  5. Step 5: Solve for x
    x = 115,141,255.66/15,379.70
  6. Step 6: Final answer
    x = 7,486.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.