Home / 13,409.50-20,114.26-5,618.32

Finding the Fourth Proportional to 13,409.50, 20,114.26 and 5,618.32

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Solution

The fourth proportional to 13,409.50, 20,114.26 and 5,618.32 is: 8,427.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,409.50 : 20,114.26 = 5,618.32 : x
  2. Step 2: Convert to fraction form
    13,409.50/20,114.26 = 5,618.32/x
  3. Step 3: Cross multiply
    13,409.50x = 20,114.26 × 5,618.32
  4. Step 4: Simplify right side
    13,409.50x = 113,008,349.24
  5. Step 5: Solve for x
    x = 113,008,349.24/13,409.50
  6. Step 6: Final answer
    x = 8,427.48

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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.