Home / 14,720.85-20,314.90-8,006.54

Finding the Fourth Proportional to 14,720.85, 20,314.90 and 8,006.54

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Solution

The fourth proportional to 14,720.85, 20,314.90 and 8,006.54 is: 11,049.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,720.85 : 20,314.90 = 8,006.54 : x
  2. Step 2: Convert to fraction form
    14,720.85/20,314.90 = 8,006.54/x
  3. Step 3: Cross multiply
    14,720.85x = 20,314.90 × 8,006.54
  4. Step 4: Simplify right side
    14,720.85x = 162,652,059.45
  5. Step 5: Solve for x
    x = 162,652,059.45/14,720.85
  6. Step 6: Final answer
    x = 11,049.09

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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.