Home / 12,766.40-19,150.20-4,001.60

Finding the Fourth Proportional to 12,766.40, 19,150.20 and 4,001.60

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Solution

The fourth proportional to 12,766.40, 19,150.20 and 4,001.60 is: 6,002.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,766.40 : 19,150.20 = 4,001.60 : x
  2. Step 2: Convert to fraction form
    12,766.40/19,150.20 = 4,001.60/x
  3. Step 3: Cross multiply
    12,766.40x = 19,150.20 × 4,001.60
  4. Step 4: Simplify right side
    12,766.40x = 76,631,440.32
  5. Step 5: Solve for x
    x = 76,631,440.32/12,766.40
  6. Step 6: Final answer
    x = 6,002.59

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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.