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Finding the Fourth Proportional to 13,597.64, 20,304.91 and 11,103.71

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Solution

The fourth proportional to 13,597.64, 20,304.91 and 11,103.71 is: 16,580.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,597.64 : 20,304.91 = 11,103.71 : x
  2. Step 2: Convert to fraction form
    13,597.64/20,304.91 = 11,103.71/x
  3. Step 3: Cross multiply
    13,597.64x = 20,304.91 × 11,103.71
  4. Step 4: Simplify right side
    13,597.64x = 225,459,702.93
  5. Step 5: Solve for x
    x = 225,459,702.93/13,597.64
  6. Step 6: Final answer
    x = 16,580.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.