Home / 18,090.30-27,088.71-12,485.26

Finding the Fourth Proportional to 18,090.30, 27,088.71 and 12,485.26

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Solution

The fourth proportional to 18,090.30, 27,088.71 and 12,485.26 is: 18,695.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,090.30 : 27,088.71 = 12,485.26 : x
  2. Step 2: Convert to fraction form
    18,090.30/27,088.71 = 12,485.26/x
  3. Step 3: Cross multiply
    18,090.30x = 27,088.71 × 12,485.26
  4. Step 4: Simplify right side
    18,090.30x = 338,209,636.88
  5. Step 5: Solve for x
    x = 338,209,636.88/18,090.30
  6. Step 6: Final answer
    x = 18,695.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.