Home / 13,697.87-20,504.88-8,772.26

Finding the Fourth Proportional to 13,697.87, 20,504.88 and 8,772.26

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Solution

The fourth proportional to 13,697.87, 20,504.88 and 8,772.26 is: 13,131.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,697.87 : 20,504.88 = 8,772.26 : x
  2. Step 2: Convert to fraction form
    13,697.87/20,504.88 = 8,772.26/x
  3. Step 3: Cross multiply
    13,697.87x = 20,504.88 × 8,772.26
  4. Step 4: Simplify right side
    13,697.87x = 179,874,036.10
  5. Step 5: Solve for x
    x = 179,874,036.10/13,697.87
  6. Step 6: Final answer
    x = 13,131.54

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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.