Home / 15,273.27-21,078.59-8,560.03

Finding the Fourth Proportional to 15,273.27, 21,078.59 and 8,560.03

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Solution

The fourth proportional to 15,273.27, 21,078.59 and 8,560.03 is: 11,813.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,273.27 : 21,078.59 = 8,560.03 : x
  2. Step 2: Convert to fraction form
    15,273.27/21,078.59 = 8,560.03/x
  3. Step 3: Cross multiply
    15,273.27x = 21,078.59 × 8,560.03
  4. Step 4: Simplify right side
    15,273.27x = 180,433,362.76
  5. Step 5: Solve for x
    x = 180,433,362.76/15,273.27
  6. Step 6: Final answer
    x = 11,813.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.