Home / 14,639.44-20,205.48-13,458.64

Finding the Fourth Proportional to 14,639.44, 20,205.48 and 13,458.64

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Solution

The fourth proportional to 14,639.44, 20,205.48 and 13,458.64 is: 18,575.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,639.44 : 20,205.48 = 13,458.64 : x
  2. Step 2: Convert to fraction form
    14,639.44/20,205.48 = 13,458.64/x
  3. Step 3: Cross multiply
    14,639.44x = 20,205.48 × 13,458.64
  4. Step 4: Simplify right side
    14,639.44x = 271,938,281.35
  5. Step 5: Solve for x
    x = 271,938,281.35/14,639.44
  6. Step 6: Final answer
    x = 18,575.73

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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.