Home / 12,926.20-19,380.50-6,683.64

Finding the Fourth Proportional to 12,926.20, 19,380.50 and 6,683.64

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Solution

The fourth proportional to 12,926.20, 19,380.50 and 6,683.64 is: 10,020.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,926.20 : 19,380.50 = 6,683.64 : x
  2. Step 2: Convert to fraction form
    12,926.20/19,380.50 = 6,683.64/x
  3. Step 3: Cross multiply
    12,926.20x = 19,380.50 × 6,683.64
  4. Step 4: Simplify right side
    12,926.20x = 129,532,285.02
  5. Step 5: Solve for x
    x = 129,532,285.02/12,926.20
  6. Step 6: Final answer
    x = 10,020.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.