Home / 13,509.44-20,266.32-5,718.32

Finding the Fourth Proportional to 13,509.44, 20,266.32 and 5,718.32

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Solution

The fourth proportional to 13,509.44, 20,266.32 and 5,718.32 is: 8,578.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,509.44 : 20,266.32 = 5,718.32 : x
  2. Step 2: Convert to fraction form
    13,509.44/20,266.32 = 5,718.32/x
  3. Step 3: Cross multiply
    13,509.44x = 20,266.32 × 5,718.32
  4. Step 4: Simplify right side
    13,509.44x = 115,889,302.98
  5. Step 5: Solve for x
    x = 115,889,302.98/13,509.44
  6. Step 6: Final answer
    x = 8,578.39

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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.