Home / 14,120.42-19,483.58-8,149.90

Finding the Fourth Proportional to 14,120.42, 19,483.58 and 8,149.90

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Solution

The fourth proportional to 14,120.42, 19,483.58 and 8,149.90 is: 11,245.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,120.42 : 19,483.58 = 8,149.90 : x
  2. Step 2: Convert to fraction form
    14,120.42/19,483.58 = 8,149.90/x
  3. Step 3: Cross multiply
    14,120.42x = 19,483.58 × 8,149.90
  4. Step 4: Simplify right side
    14,120.42x = 158,789,228.64
  5. Step 5: Solve for x
    x = 158,789,228.64/14,120.42
  6. Step 6: Final answer
    x = 11,245.36

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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.