Home / 14,385.51-21,578.31-3,997.26

Finding the Fourth Proportional to 14,385.51, 21,578.31 and 3,997.26

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Solution

The fourth proportional to 14,385.51, 21,578.31 and 3,997.26 is: 5,995.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,385.51 : 21,578.31 = 3,997.26 : x
  2. Step 2: Convert to fraction form
    14,385.51/21,578.31 = 3,997.26/x
  3. Step 3: Cross multiply
    14,385.51x = 21,578.31 × 3,997.26
  4. Step 4: Simplify right side
    14,385.51x = 86,254,115.43
  5. Step 5: Solve for x
    x = 86,254,115.43/14,385.51
  6. Step 6: Final answer
    x = 5,995.90

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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.