Home / 12,515.19-18,774.86-5,937.79

Finding the Fourth Proportional to 12,515.19, 18,774.86 and 5,937.79

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Solution

The fourth proportional to 12,515.19, 18,774.86 and 5,937.79 is: 8,907.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,515.19 : 18,774.86 = 5,937.79 : x
  2. Step 2: Convert to fraction form
    12,515.19/18,774.86 = 5,937.79/x
  3. Step 3: Cross multiply
    12,515.19x = 18,774.86 × 5,937.79
  4. Step 4: Simplify right side
    12,515.19x = 111,481,143.87
  5. Step 5: Solve for x
    x = 111,481,143.87/12,515.19
  6. Step 6: Final answer
    x = 8,907.67

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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.