Home / 14,788.42-20,405.82-8,499.58

Finding the Fourth Proportional to 14,788.42, 20,405.82 and 8,499.58

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Solution

The fourth proportional to 14,788.42, 20,405.82 and 8,499.58 is: 11,728.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,788.42 : 20,405.82 = 8,499.58 : x
  2. Step 2: Convert to fraction form
    14,788.42/20,405.82 = 8,499.58/x
  3. Step 3: Cross multiply
    14,788.42x = 20,405.82 × 8,499.58
  4. Step 4: Simplify right side
    14,788.42x = 173,440,899.56
  5. Step 5: Solve for x
    x = 173,440,899.56/14,788.42
  6. Step 6: Final answer
    x = 11,728.16

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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.