Home / 18,315.23-27,474.21-7,784.07

Finding the Fourth Proportional to 18,315.23, 27,474.21 and 7,784.07

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Solution

The fourth proportional to 18,315.23, 27,474.21 and 7,784.07 is: 11,676.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,315.23 : 27,474.21 = 7,784.07 : x
  2. Step 2: Convert to fraction form
    18,315.23/27,474.21 = 7,784.07/x
  3. Step 3: Cross multiply
    18,315.23x = 27,474.21 × 7,784.07
  4. Step 4: Simplify right side
    18,315.23x = 213,861,173.83
  5. Step 5: Solve for x
    x = 213,861,173.83/18,315.23
  6. Step 6: Final answer
    x = 11,676.69

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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.