Home / 10,878.69-15,012.09-6,163.01

Finding the Fourth Proportional to 10,878.69, 15,012.09 and 6,163.01

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Solution

The fourth proportional to 10,878.69, 15,012.09 and 6,163.01 is: 8,504.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,878.69 : 15,012.09 = 6,163.01 : x
  2. Step 2: Convert to fraction form
    10,878.69/15,012.09 = 6,163.01/x
  3. Step 3: Cross multiply
    10,878.69x = 15,012.09 × 6,163.01
  4. Step 4: Simplify right side
    10,878.69x = 92,519,660.79
  5. Step 5: Solve for x
    x = 92,519,660.79/10,878.69
  6. Step 6: Final answer
    x = 8,504.67

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1.5x scale

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.