Home / 13,550.06-20,325.26-4,778.82

Finding the Fourth Proportional to 13,550.06, 20,325.26 and 4,778.82

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Solution

The fourth proportional to 13,550.06, 20,325.26 and 4,778.82 is: 7,168.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,550.06 : 20,325.26 = 4,778.82 : x
  2. Step 2: Convert to fraction form
    13,550.06/20,325.26 = 4,778.82/x
  3. Step 3: Cross multiply
    13,550.06x = 20,325.26 × 4,778.82
  4. Step 4: Simplify right side
    13,550.06x = 97,130,735.10
  5. Step 5: Solve for x
    x = 97,130,735.10/13,550.06
  6. Step 6: Final answer
    x = 7,168.29

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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.