Home / 9,915.19-13,683.26-5,938.49

Finding the Fourth Proportional to 9,915.19, 13,683.26 and 5,938.49

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Solution

The fourth proportional to 9,915.19, 13,683.26 and 5,938.49 is: 8,195.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,915.19 : 13,683.26 = 5,938.49 : x
  2. Step 2: Convert to fraction form
    9,915.19/13,683.26 = 5,938.49/x
  3. Step 3: Cross multiply
    9,915.19x = 13,683.26 × 5,938.49
  4. Step 4: Simplify right side
    9,915.19x = 81,257,902.68
  5. Step 5: Solve for x
    x = 81,257,902.68/9,915.19
  6. Step 6: Final answer
    x = 8,195.29

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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.