Home / 18,564.24-27,847.56-5,415.50

Finding the Fourth Proportional to 18,564.24, 27,847.56 and 5,415.50

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Solution

The fourth proportional to 18,564.24, 27,847.56 and 5,415.50 is: 8,123.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,564.24 : 27,847.56 = 5,415.50 : x
  2. Step 2: Convert to fraction form
    18,564.24/27,847.56 = 5,415.50/x
  3. Step 3: Cross multiply
    18,564.24x = 27,847.56 × 5,415.50
  4. Step 4: Simplify right side
    18,564.24x = 150,808,461.18
  5. Step 5: Solve for x
    x = 150,808,461.18/18,564.24
  6. Step 6: Final answer
    x = 8,123.60

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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.