Home / 14,817.58-20,447.61-8,445.55

Finding the Fourth Proportional to 14,817.58, 20,447.61 and 8,445.55

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Solution

The fourth proportional to 14,817.58, 20,447.61 and 8,445.55 is: 11,654.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,817.58 : 20,447.61 = 8,445.55 : x
  2. Step 2: Convert to fraction form
    14,817.58/20,447.61 = 8,445.55/x
  3. Step 3: Cross multiply
    14,817.58x = 20,447.61 × 8,445.55
  4. Step 4: Simplify right side
    14,817.58x = 172,691,342.64
  5. Step 5: Solve for x
    x = 172,691,342.64/14,817.58
  6. Step 6: Final answer
    x = 11,654.49

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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.