Home / 9,355.40-12,911.36-6,993.44

Finding the Fourth Proportional to 9,355.40, 12,911.36 and 6,993.44

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Solution

The fourth proportional to 9,355.40, 12,911.36 and 6,993.44 is: 9,651.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,355.40 : 12,911.36 = 6,993.44 : x
  2. Step 2: Convert to fraction form
    9,355.40/12,911.36 = 6,993.44/x
  3. Step 3: Cross multiply
    9,355.40x = 12,911.36 × 6,993.44
  4. Step 4: Simplify right side
    9,355.40x = 90,294,821.48
  5. Step 5: Solve for x
    x = 90,294,821.48/9,355.40
  6. Step 6: Final answer
    x = 9,651.63

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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.