Home / 12,762.36-19,142.28-3,997.35

Finding the Fourth Proportional to 12,762.36, 19,142.28 and 3,997.35

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Solution

The fourth proportional to 12,762.36, 19,142.28 and 3,997.35 is: 5,995.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,762.36 : 19,142.28 = 3,997.35 : x
  2. Step 2: Convert to fraction form
    12,762.36/19,142.28 = 3,997.35/x
  3. Step 3: Cross multiply
    12,762.36x = 19,142.28 × 3,997.35
  4. Step 4: Simplify right side
    12,762.36x = 76,518,392.96
  5. Step 5: Solve for x
    x = 76,518,392.96/12,762.36
  6. Step 6: Final answer
    x = 5,995.63

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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.