Home / 9,893.85-13,653.68-5,915.40

Finding the Fourth Proportional to 9,893.85, 13,653.68 and 5,915.40

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Solution

The fourth proportional to 9,893.85, 13,653.68 and 5,915.40 is: 8,163.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,893.85 : 13,653.68 = 5,915.40 : x
  2. Step 2: Convert to fraction form
    9,893.85/13,653.68 = 5,915.40/x
  3. Step 3: Cross multiply
    9,893.85x = 13,653.68 × 5,915.40
  4. Step 4: Simplify right side
    9,893.85x = 80,766,949.10
  5. Step 5: Solve for x
    x = 80,766,949.10/9,893.85
  6. Step 6: Final answer
    x = 8,163.35

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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.