Home / 9,611.10-13,263.75-6,418.80

Finding the Fourth Proportional to 9,611.10, 13,263.75 and 6,418.80

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Solution

The fourth proportional to 9,611.10, 13,263.75 and 6,418.80 is: 8,858.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,611.10 : 13,263.75 = 6,418.80 : x
  2. Step 2: Convert to fraction form
    9,611.10/13,263.75 = 6,418.80/x
  3. Step 3: Cross multiply
    9,611.10x = 13,263.75 × 6,418.80
  4. Step 4: Simplify right side
    9,611.10x = 85,137,358.50
  5. Step 5: Solve for x
    x = 85,137,358.50/9,611.10
  6. Step 6: Final answer
    x = 8,858.23

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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.