Home / 12,544.20-18,764.46-11,403.72

Finding the Fourth Proportional to 12,544.20, 18,764.46 and 11,403.72

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Solution

The fourth proportional to 12,544.20, 18,764.46 and 11,403.72 is: 17,058.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,544.20 : 18,764.46 = 11,403.72 : x
  2. Step 2: Convert to fraction form
    12,544.20/18,764.46 = 11,403.72/x
  3. Step 3: Cross multiply
    12,544.20x = 18,764.46 × 11,403.72
  4. Step 4: Simplify right side
    12,544.20x = 213,984,647.79
  5. Step 5: Solve for x
    x = 213,984,647.79/12,544.20
  6. Step 6: Final answer
    x = 17,058.45

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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.