Home / 9,916.21-13,684.30-5,938.30

Finding the Fourth Proportional to 9,916.21, 13,684.30 and 5,938.30

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Solution

The fourth proportional to 9,916.21, 13,684.30 and 5,938.30 is: 8,194.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,916.21 : 13,684.30 = 5,938.30 : x
  2. Step 2: Convert to fraction form
    9,916.21/13,684.30 = 5,938.30/x
  3. Step 3: Cross multiply
    9,916.21x = 13,684.30 × 5,938.30
  4. Step 4: Simplify right side
    9,916.21x = 81,261,478.69
  5. Step 5: Solve for x
    x = 81,261,478.69/9,916.21
  6. Step 6: Final answer
    x = 8,194.81

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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.