Home / 13,381.25-20,075.92-4,495.55

Finding the Fourth Proportional to 13,381.25, 20,075.92 and 4,495.55

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Solution

The fourth proportional to 13,381.25, 20,075.92 and 4,495.55 is: 6,744.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,381.25 : 20,075.92 = 4,495.55 : x
  2. Step 2: Convert to fraction form
    13,381.25/20,075.92 = 4,495.55/x
  3. Step 3: Cross multiply
    13,381.25x = 20,075.92 × 4,495.55
  4. Step 4: Simplify right side
    13,381.25x = 90,252,190.54
  5. Step 5: Solve for x
    x = 90,252,190.54/13,381.25
  6. Step 6: Final answer
    x = 6,744.68

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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.