Home / 13,584.64-20,336.64-8,303.84

Finding the Fourth Proportional to 13,584.64, 20,336.64 and 8,303.84

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Solution

The fourth proportional to 13,584.64, 20,336.64 and 8,303.84 is: 12,431.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,584.64 : 20,336.64 = 8,303.84 : x
  2. Step 2: Convert to fraction form
    13,584.64/20,336.64 = 8,303.84/x
  3. Step 3: Cross multiply
    13,584.64x = 20,336.64 × 8,303.84
  4. Step 4: Simplify right side
    13,584.64x = 168,872,204.70
  5. Step 5: Solve for x
    x = 168,872,204.70/13,584.64
  6. Step 6: Final answer
    x = 12,431.11

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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.