Home / 13,245.41-18,297.33-12,545.57

Finding the Fourth Proportional to 13,245.41, 18,297.33 and 12,545.57

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Solution

The fourth proportional to 13,245.41, 18,297.33 and 12,545.57 is: 17,330.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,245.41 : 18,297.33 = 12,545.57 : x
  2. Step 2: Convert to fraction form
    13,245.41/18,297.33 = 12,545.57/x
  3. Step 3: Cross multiply
    13,245.41x = 18,297.33 × 12,545.57
  4. Step 4: Simplify right side
    13,245.41x = 229,550,433.03
  5. Step 5: Solve for x
    x = 229,550,433.03/13,245.41
  6. Step 6: Final answer
    x = 17,330.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.