Home / 13,220.64-19,833.84-4,455.72

Finding the Fourth Proportional to 13,220.64, 19,833.84 and 4,455.72

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Solution

The fourth proportional to 13,220.64, 19,833.84 and 4,455.72 is: 6,684.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,220.64 : 19,833.84 = 4,455.72 : x
  2. Step 2: Convert to fraction form
    13,220.64/19,833.84 = 4,455.72/x
  3. Step 3: Cross multiply
    13,220.64x = 19,833.84 × 4,455.72
  4. Step 4: Simplify right side
    13,220.64x = 88,374,037.56
  5. Step 5: Solve for x
    x = 88,374,037.56/13,220.64
  6. Step 6: Final answer
    x = 6,684.55

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1.5x scale

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.