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Finding the Fourth Proportional to 13,036.64, 17,998.88 and 8,568.32

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Solution

The fourth proportional to 13,036.64, 17,998.88 and 8,568.32 is: 11,829.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,036.64 : 17,998.88 = 8,568.32 : x
  2. Step 2: Convert to fraction form
    13,036.64/17,998.88 = 8,568.32/x
  3. Step 3: Cross multiply
    13,036.64x = 17,998.88 × 8,568.32
  4. Step 4: Simplify right side
    13,036.64x = 154,220,163.48
  5. Step 5: Solve for x
    x = 154,220,163.48/13,036.64
  6. Step 6: Final answer
    x = 11,829.75

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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.