Home / 12,090.16-16,683.40-6,784.24

Finding the Fourth Proportional to 12,090.16, 16,683.40 and 6,784.24

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Solution

The fourth proportional to 12,090.16, 16,683.40 and 6,784.24 is: 9,361.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,090.16 : 16,683.40 = 6,784.24 : x
  2. Step 2: Convert to fraction form
    12,090.16/16,683.40 = 6,784.24/x
  3. Step 3: Cross multiply
    12,090.16x = 16,683.40 × 6,784.24
  4. Step 4: Simplify right side
    12,090.16x = 113,184,189.62
  5. Step 5: Solve for x
    x = 113,184,189.62/12,090.16
  6. Step 6: Final answer
    x = 9,361.68

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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.