Home / 12,090.07-16,683.44-6,712.80

Finding the Fourth Proportional to 12,090.07, 16,683.44 and 6,712.80

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Solution

The fourth proportional to 12,090.07, 16,683.44 and 6,712.80 is: 9,263.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,090.07 : 16,683.44 = 6,712.80 : x
  2. Step 2: Convert to fraction form
    12,090.07/16,683.44 = 6,712.80/x
  3. Step 3: Cross multiply
    12,090.07x = 16,683.44 × 6,712.80
  4. Step 4: Simplify right side
    12,090.07x = 111,992,596.03
  5. Step 5: Solve for x
    x = 111,992,596.03/12,090.07
  6. Step 6: Final answer
    x = 9,263.19

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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.