Home / 12,921.24-19,379.10-5,899.26

Finding the Fourth Proportional to 12,921.24, 19,379.10 and 5,899.26

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Solution

The fourth proportional to 12,921.24, 19,379.10 and 5,899.26 is: 8,847.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,921.24 : 19,379.10 = 5,899.26 : x
  2. Step 2: Convert to fraction form
    12,921.24/19,379.10 = 5,899.26/x
  3. Step 3: Cross multiply
    12,921.24x = 19,379.10 × 5,899.26
  4. Step 4: Simplify right side
    12,921.24x = 114,322,349.47
  5. Step 5: Solve for x
    x = 114,322,349.47/12,921.24
  6. Step 6: Final answer
    x = 8,847.63

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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.