Home / 14,991.75-20,690.44-8,704.13

Finding the Fourth Proportional to 14,991.75, 20,690.44 and 8,704.13

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Solution

The fourth proportional to 14,991.75, 20,690.44 and 8,704.13 is: 12,012.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,991.75 : 20,690.44 = 8,704.13 : x
  2. Step 2: Convert to fraction form
    14,991.75/20,690.44 = 8,704.13/x
  3. Step 3: Cross multiply
    14,991.75x = 20,690.44 × 8,704.13
  4. Step 4: Simplify right side
    14,991.75x = 180,092,154.30
  5. Step 5: Solve for x
    x = 180,092,154.30/14,991.75
  6. Step 6: Final answer
    x = 12,012.75

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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.