Home / 8,090.55-11,136.89-6,975.18

Finding the Fourth Proportional to 8,090.55, 11,136.89 and 6,975.18

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Solution

The fourth proportional to 8,090.55, 11,136.89 and 6,975.18 is: 9,601.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,090.55 : 11,136.89 = 6,975.18 : x
  2. Step 2: Convert to fraction form
    8,090.55/11,136.89 = 6,975.18/x
  3. Step 3: Cross multiply
    8,090.55x = 11,136.89 × 6,975.18
  4. Step 4: Simplify right side
    8,090.55x = 77,681,829.83
  5. Step 5: Solve for x
    x = 77,681,829.83/8,090.55
  6. Step 6: Final answer
    x = 9,601.55

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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.