Home / 12,644.28-19,040.58-11,019.78

Finding the Fourth Proportional to 12,644.28, 19,040.58 and 11,019.78

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Solution

The fourth proportional to 12,644.28, 19,040.58 and 11,019.78 is: 16,594.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,644.28 : 19,040.58 = 11,019.78 : x
  2. Step 2: Convert to fraction form
    12,644.28/19,040.58 = 11,019.78/x
  3. Step 3: Cross multiply
    12,644.28x = 19,040.58 × 11,019.78
  4. Step 4: Simplify right side
    12,644.28x = 209,823,002.67
  5. Step 5: Solve for x
    x = 209,823,002.67/12,644.28
  6. Step 6: Final answer
    x = 16,594.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.