Home / 12,762.72-19,142.40-4,440.96

Finding the Fourth Proportional to 12,762.72, 19,142.40 and 4,440.96

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Solution

The fourth proportional to 12,762.72, 19,142.40 and 4,440.96 is: 6,660.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,762.72 : 19,142.40 = 4,440.96 : x
  2. Step 2: Convert to fraction form
    12,762.72/19,142.40 = 4,440.96/x
  3. Step 3: Cross multiply
    12,762.72x = 19,142.40 × 4,440.96
  4. Step 4: Simplify right side
    12,762.72x = 85,010,632.70
  5. Step 5: Solve for x
    x = 85,010,632.70/12,762.72
  6. Step 6: Final answer
    x = 6,660.86

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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.