Home / 13,379.24-18,458.60-7,997.93

Finding the Fourth Proportional to 13,379.24, 18,458.60 and 7,997.93

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Solution

The fourth proportional to 13,379.24, 18,458.60 and 7,997.93 is: 11,034.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,379.24 : 18,458.60 = 7,997.93 : x
  2. Step 2: Convert to fraction form
    13,379.24/18,458.60 = 7,997.93/x
  3. Step 3: Cross multiply
    13,379.24x = 18,458.60 × 7,997.93
  4. Step 4: Simplify right side
    13,379.24x = 147,630,596.85
  5. Step 5: Solve for x
    x = 147,630,596.85/13,379.24
  6. Step 6: Final answer
    x = 11,034.31

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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.