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Finding the Fourth Proportional to 13,066.64, 18,027 and 8,350.16

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Solution

The fourth proportional to 13,066.64, 18,027 and 8,350.16 is: 11,520.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,066.64 : 18,027 = 8,350.16 : x
  2. Step 2: Convert to fraction form
    13,066.64/18,027 = 8,350.16/x
  3. Step 3: Cross multiply
    13,066.64x = 18,027 × 8,350.16
  4. Step 4: Simplify right side
    13,066.64x = 150,528,334.32
  5. Step 5: Solve for x
    x = 150,528,334.32/13,066.64
  6. Step 6: Final answer
    x = 11,520.05

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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.