Home / 12,647.42-18,970.45-3,882.34

Finding the Fourth Proportional to 12,647.42, 18,970.45 and 3,882.34

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Solution

The fourth proportional to 12,647.42, 18,970.45 and 3,882.34 is: 5,823.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,647.42 : 18,970.45 = 3,882.34 : x
  2. Step 2: Convert to fraction form
    12,647.42/18,970.45 = 3,882.34/x
  3. Step 3: Cross multiply
    12,647.42x = 18,970.45 × 3,882.34
  4. Step 4: Simplify right side
    12,647.42x = 73,649,622.59
  5. Step 5: Solve for x
    x = 73,649,622.59/12,647.42
  6. Step 6: Final answer
    x = 5,823.29

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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.