Home / 13,550.79-20,321.63-4,543.08

Finding the Fourth Proportional to 13,550.79, 20,321.63 and 4,543.08

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Solution

The fourth proportional to 13,550.79, 20,321.63 and 4,543.08 is: 6,813.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,550.79 : 20,321.63 = 4,543.08 : x
  2. Step 2: Convert to fraction form
    13,550.79/20,321.63 = 4,543.08/x
  3. Step 3: Cross multiply
    13,550.79x = 20,321.63 × 4,543.08
  4. Step 4: Simplify right side
    13,550.79x = 92,322,768.11
  5. Step 5: Solve for x
    x = 92,322,768.11/13,550.79
  6. Step 6: Final answer
    x = 6,813.09

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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.