Home / 13,464.28-18,579.22-8,085.64

Finding the Fourth Proportional to 13,464.28, 18,579.22 and 8,085.64

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Solution

The fourth proportional to 13,464.28, 18,579.22 and 8,085.64 is: 11,157.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,464.28 : 18,579.22 = 8,085.64 : x
  2. Step 2: Convert to fraction form
    13,464.28/18,579.22 = 8,085.64/x
  3. Step 3: Cross multiply
    13,464.28x = 18,579.22 × 8,085.64
  4. Step 4: Simplify right side
    13,464.28x = 150,224,884.40
  5. Step 5: Solve for x
    x = 150,224,884.40/13,464.28
  6. Step 6: Final answer
    x = 11,157.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.