Home / 14,385.70-21,549.82-11,429.13

Finding the Fourth Proportional to 14,385.70, 21,549.82 and 11,429.13

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Solution

The fourth proportional to 14,385.70, 21,549.82 and 11,429.13 is: 17,120.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,385.70 : 21,549.82 = 11,429.13 : x
  2. Step 2: Convert to fraction form
    14,385.70/21,549.82 = 11,429.13/x
  3. Step 3: Cross multiply
    14,385.70x = 21,549.82 × 11,429.13
  4. Step 4: Simplify right side
    14,385.70x = 246,295,694.26
  5. Step 5: Solve for x
    x = 246,295,694.26/14,385.70
  6. Step 6: Final answer
    x = 17,120.87

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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.