Home / 14,075.62-21,116.43-5,190.97

Finding the Fourth Proportional to 14,075.62, 21,116.43 and 5,190.97

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Solution

The fourth proportional to 14,075.62, 21,116.43 and 5,190.97 is: 7,787.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,075.62 : 21,116.43 = 5,190.97 : x
  2. Step 2: Convert to fraction form
    14,075.62/21,116.43 = 5,190.97/x
  3. Step 3: Cross multiply
    14,075.62x = 21,116.43 × 5,190.97
  4. Step 4: Simplify right side
    14,075.62x = 109,614,649.05
  5. Step 5: Solve for x
    x = 109,614,649.05/14,075.62
  6. Step 6: Final answer
    x = 7,787.56

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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.