Home / 13,822.56-19,075.12-8,157.32

Finding the Fourth Proportional to 13,822.56, 19,075.12 and 8,157.32

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Solution

The fourth proportional to 13,822.56, 19,075.12 and 8,157.32 is: 11,257.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,822.56 : 19,075.12 = 8,157.32 : x
  2. Step 2: Convert to fraction form
    13,822.56/19,075.12 = 8,157.32/x
  3. Step 3: Cross multiply
    13,822.56x = 19,075.12 × 8,157.32
  4. Step 4: Simplify right side
    13,822.56x = 155,601,857.88
  5. Step 5: Solve for x
    x = 155,601,857.88/13,822.56
  6. Step 6: Final answer
    x = 11,257.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.