Home / 14,757.90-20,364.21-8,788.38

Finding the Fourth Proportional to 14,757.90, 20,364.21 and 8,788.38

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Solution

The fourth proportional to 14,757.90, 20,364.21 and 8,788.38 is: 12,126.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,757.90 : 20,364.21 = 8,788.38 : x
  2. Step 2: Convert to fraction form
    14,757.90/20,364.21 = 8,788.38/x
  3. Step 3: Cross multiply
    14,757.90x = 20,364.21 × 8,788.38
  4. Step 4: Simplify right side
    14,757.90x = 178,968,415.88
  5. Step 5: Solve for x
    x = 178,968,415.88/14,757.90
  6. Step 6: Final answer
    x = 12,126.96

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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.