Home / 13,684.19-18,884.19-7,396.57

Finding the Fourth Proportional to 13,684.19, 18,884.19 and 7,396.57

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Solution

The fourth proportional to 13,684.19, 18,884.19 and 7,396.57 is: 10,207.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,684.19 : 18,884.19 = 7,396.57 : x
  2. Step 2: Convert to fraction form
    13,684.19/18,884.19 = 7,396.57/x
  3. Step 3: Cross multiply
    13,684.19x = 18,884.19 × 7,396.57
  4. Step 4: Simplify right side
    13,684.19x = 139,678,136.74
  5. Step 5: Solve for x
    x = 139,678,136.74/13,684.19
  6. Step 6: Final answer
    x = 10,207.26

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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.