Home / 13,683.63-18,883.40-7,396

Finding the Fourth Proportional to 13,683.63, 18,883.40 and 7,396

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Solution

The fourth proportional to 13,683.63, 18,883.40 and 7,396 is: 10,206.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,683.63 : 18,883.40 = 7,396 : x
  2. Step 2: Convert to fraction form
    13,683.63/18,883.40 = 7,396/x
  3. Step 3: Cross multiply
    13,683.63x = 18,883.40 × 7,396
  4. Step 4: Simplify right side
    13,683.63x = 139,661,626.40
  5. Step 5: Solve for x
    x = 139,661,626.40/13,683.63
  6. Step 6: Final answer
    x = 10,206.47

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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.