Home / 13,393.87-20,091.78-4,509.22

Finding the Fourth Proportional to 13,393.87, 20,091.78 and 4,509.22

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Solution

The fourth proportional to 13,393.87, 20,091.78 and 4,509.22 is: 6,764.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,393.87 : 20,091.78 = 4,509.22 : x
  2. Step 2: Convert to fraction form
    13,393.87/20,091.78 = 4,509.22/x
  3. Step 3: Cross multiply
    13,393.87x = 20,091.78 × 4,509.22
  4. Step 4: Simplify right side
    13,393.87x = 90,598,256.21
  5. Step 5: Solve for x
    x = 90,598,256.21/13,393.87
  6. Step 6: Final answer
    x = 6,764.16

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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.