Home / 13,683.89-18,883.74-7,396.25

Finding the Fourth Proportional to 13,683.89, 18,883.74 and 7,396.25

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Solution

The fourth proportional to 13,683.89, 18,883.74 and 7,396.25 is: 10,206.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,683.89 : 18,883.74 = 7,396.25 : x
  2. Step 2: Convert to fraction form
    13,683.89/18,883.74 = 7,396.25/x
  3. Step 3: Cross multiply
    13,683.89x = 18,883.74 × 7,396.25
  4. Step 4: Simplify right side
    13,683.89x = 139,668,861.98
  5. Step 5: Solve for x
    x = 139,668,861.98/13,683.89
  6. Step 6: Final answer
    x = 10,206.81

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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.