Home / 18,000.12-27,012.26-6,313.40

Finding the Fourth Proportional to 18,000.12, 27,012.26 and 6,313.40

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Solution

The fourth proportional to 18,000.12, 27,012.26 and 6,313.40 is: 9,474.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,000.12 : 27,012.26 = 6,313.40 : x
  2. Step 2: Convert to fraction form
    18,000.12/27,012.26 = 6,313.40/x
  3. Step 3: Cross multiply
    18,000.12x = 27,012.26 × 6,313.40
  4. Step 4: Simplify right side
    18,000.12x = 170,539,202.28
  5. Step 5: Solve for x
    x = 170,539,202.28/18,000.12
  6. Step 6: Final answer
    x = 9,474.34

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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.