Home / 13,395.32-18,485.46-8,090.12

Finding the Fourth Proportional to 13,395.32, 18,485.46 and 8,090.12

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Solution

The fourth proportional to 13,395.32, 18,485.46 and 8,090.12 is: 11,164.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,395.32 : 18,485.46 = 8,090.12 : x
  2. Step 2: Convert to fraction form
    13,395.32/18,485.46 = 8,090.12/x
  3. Step 3: Cross multiply
    13,395.32x = 18,485.46 × 8,090.12
  4. Step 4: Simplify right side
    13,395.32x = 149,549,589.66
  5. Step 5: Solve for x
    x = 149,549,589.66/13,395.32
  6. Step 6: Final answer
    x = 11,164.32

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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.