Home / 13,399.04-20,115.84-7,247.36

Finding the Fourth Proportional to 13,399.04, 20,115.84 and 7,247.36

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Solution

The fourth proportional to 13,399.04, 20,115.84 and 7,247.36 is: 10,880.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,399.04 : 20,115.84 = 7,247.36 : x
  2. Step 2: Convert to fraction form
    13,399.04/20,115.84 = 7,247.36/x
  3. Step 3: Cross multiply
    13,399.04x = 20,115.84 × 7,247.36
  4. Step 4: Simplify right side
    13,399.04x = 145,786,734.18
  5. Step 5: Solve for x
    x = 145,786,734.18/13,399.04
  6. Step 6: Final answer
    x = 10,880.39

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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.