Home / 8,116.80-11,145.60-6,532.80

Finding the Fourth Proportional to 8,116.80, 11,145.60 and 6,532.80

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Solution

The fourth proportional to 8,116.80, 11,145.60 and 6,532.80 is: 8,970.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,116.80 : 11,145.60 = 6,532.80 : x
  2. Step 2: Convert to fraction form
    8,116.80/11,145.60 = 6,532.80/x
  3. Step 3: Cross multiply
    8,116.80x = 11,145.60 × 6,532.80
  4. Step 4: Simplify right side
    8,116.80x = 72,811,975.68
  5. Step 5: Solve for x
    x = 72,811,975.68/8,116.80
  6. Step 6: Final answer
    x = 8,970.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.