Home / 10,189.36-15,288.44-5,512.67

Finding the Fourth Proportional to 10,189.36, 15,288.44 and 5,512.67

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Solution

The fourth proportional to 10,189.36, 15,288.44 and 5,512.67 is: 8,271.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,189.36 : 15,288.44 = 5,512.67 : x
  2. Step 2: Convert to fraction form
    10,189.36/15,288.44 = 5,512.67/x
  3. Step 3: Cross multiply
    10,189.36x = 15,288.44 × 5,512.67
  4. Step 4: Simplify right side
    10,189.36x = 84,280,048.09
  5. Step 5: Solve for x
    x = 84,280,048.09/10,189.36
  6. Step 6: Final answer
    x = 8,271.38

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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.