Home / 18,421.63-27,632.37-5,274

Finding the Fourth Proportional to 18,421.63, 27,632.37 and 5,274

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Solution

The fourth proportional to 18,421.63, 27,632.37 and 5,274 is: 7,910.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,421.63 : 27,632.37 = 5,274 : x
  2. Step 2: Convert to fraction form
    18,421.63/27,632.37 = 5,274/x
  3. Step 3: Cross multiply
    18,421.63x = 27,632.37 × 5,274
  4. Step 4: Simplify right side
    18,421.63x = 145,733,099.60
  5. Step 5: Solve for x
    x = 145,733,099.60/18,421.63
  6. Step 6: Final answer
    x = 7,910.98

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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.