Home / 14,411.30-21,473.68-12,839.22

Finding the Fourth Proportional to 14,411.30, 21,473.68 and 12,839.22

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Solution

The fourth proportional to 14,411.30, 21,473.68 and 12,839.22 is: 19,131.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,411.30 : 21,473.68 = 12,839.22 : x
  2. Step 2: Convert to fraction form
    14,411.30/21,473.68 = 12,839.22/x
  3. Step 3: Cross multiply
    14,411.30x = 21,473.68 × 12,839.22
  4. Step 4: Simplify right side
    14,411.30x = 275,705,317.78
  5. Step 5: Solve for x
    x = 275,705,317.78/14,411.30
  6. Step 6: Final answer
    x = 19,131.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.