Home / 14,847.21-20,488.28-8,131.50

Finding the Fourth Proportional to 14,847.21, 20,488.28 and 8,131.50

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Solution

The fourth proportional to 14,847.21, 20,488.28 and 8,131.50 is: 11,220.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,847.21 : 20,488.28 = 8,131.50 : x
  2. Step 2: Convert to fraction form
    14,847.21/20,488.28 = 8,131.50/x
  3. Step 3: Cross multiply
    14,847.21x = 20,488.28 × 8,131.50
  4. Step 4: Simplify right side
    14,847.21x = 166,600,408.16
  5. Step 5: Solve for x
    x = 166,600,408.16/14,847.21
  6. Step 6: Final answer
    x = 11,220.99

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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.