Home / 18,315.21-27,450.19-10,424.24

Finding the Fourth Proportional to 18,315.21, 27,450.19 and 10,424.24

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Solution

The fourth proportional to 18,315.21, 27,450.19 and 10,424.24 is: 15,623.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,315.21 : 27,450.19 = 10,424.24 : x
  2. Step 2: Convert to fraction form
    18,315.21/27,450.19 = 10,424.24/x
  3. Step 3: Cross multiply
    18,315.21x = 27,450.19 × 10,424.24
  4. Step 4: Simplify right side
    18,315.21x = 286,147,501.73
  5. Step 5: Solve for x
    x = 286,147,501.73/18,315.21
  6. Step 6: Final answer
    x = 15,623.49

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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.