Home / 12,090.09-16,683.96-6,785.13

Finding the Fourth Proportional to 12,090.09, 16,683.96 and 6,785.13

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Solution

The fourth proportional to 12,090.09, 16,683.96 and 6,785.13 is: 9,363.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,090.09 : 16,683.96 = 6,785.13 : x
  2. Step 2: Convert to fraction form
    12,090.09/16,683.96 = 6,785.13/x
  3. Step 3: Cross multiply
    12,090.09x = 16,683.96 × 6,785.13
  4. Step 4: Simplify right side
    12,090.09x = 113,202,837.51
  5. Step 5: Solve for x
    x = 113,202,837.51/12,090.09
  6. Step 6: Final answer
    x = 9,363.28

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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.