Home / 13,550.19-20,303.37-5,220.42

Finding the Fourth Proportional to 13,550.19, 20,303.37 and 5,220.42

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Solution

The fourth proportional to 13,550.19, 20,303.37 and 5,220.42 is: 7,822.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,550.19 : 20,303.37 = 5,220.42 : x
  2. Step 2: Convert to fraction form
    13,550.19/20,303.37 = 5,220.42/x
  3. Step 3: Cross multiply
    13,550.19x = 20,303.37 × 5,220.42
  4. Step 4: Simplify right side
    13,550.19x = 105,992,118.82
  5. Step 5: Solve for x
    x = 105,992,118.82/13,550.19
  6. Step 6: Final answer
    x = 7,822.19

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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.