Home / 18,756.89-28,126.66-6,907.67

Finding the Fourth Proportional to 18,756.89, 28,126.66 and 6,907.67

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Solution

The fourth proportional to 18,756.89, 28,126.66 and 6,907.67 is: 10,358.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,756.89 : 28,126.66 = 6,907.67 : x
  2. Step 2: Convert to fraction form
    18,756.89/28,126.66 = 6,907.67/x
  3. Step 3: Cross multiply
    18,756.89x = 28,126.66 × 6,907.67
  4. Step 4: Simplify right side
    18,756.89x = 194,289,685.48
  5. Step 5: Solve for x
    x = 194,289,685.48/18,756.89
  6. Step 6: Final answer
    x = 10,358.31

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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.