Home / 12,440.28-18,660.69-4,644.84

Finding the Fourth Proportional to 12,440.28, 18,660.69 and 4,644.84

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Solution

The fourth proportional to 12,440.28, 18,660.69 and 4,644.84 is: 6,967.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,440.28 : 18,660.69 = 4,644.84 : x
  2. Step 2: Convert to fraction form
    12,440.28/18,660.69 = 4,644.84/x
  3. Step 3: Cross multiply
    12,440.28x = 18,660.69 × 4,644.84
  4. Step 4: Simplify right side
    12,440.28x = 86,675,919.34
  5. Step 5: Solve for x
    x = 86,675,919.34/12,440.28
  6. Step 6: Final answer
    x = 6,967.36

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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.