Home / 14,153.82-21,230.91-5,389.21

Finding the Fourth Proportional to 14,153.82, 21,230.91 and 5,389.21

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Solution

The fourth proportional to 14,153.82, 21,230.91 and 5,389.21 is: 8,083.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,153.82 : 21,230.91 = 5,389.21 : x
  2. Step 2: Convert to fraction form
    14,153.82/21,230.91 = 5,389.21/x
  3. Step 3: Cross multiply
    14,153.82x = 21,230.91 × 5,389.21
  4. Step 4: Simplify right side
    14,153.82x = 114,417,832.48
  5. Step 5: Solve for x
    x = 114,417,832.48/14,153.82
  6. Step 6: Final answer
    x = 8,083.88

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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.