Home / 9,768.24-13,479.36-5,519.67

Finding the Fourth Proportional to 9,768.24, 13,479.36 and 5,519.67

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Solution

The fourth proportional to 9,768.24, 13,479.36 and 5,519.67 is: 7,616.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,768.24 : 13,479.36 = 5,519.67 : x
  2. Step 2: Convert to fraction form
    9,768.24/13,479.36 = 5,519.67/x
  3. Step 3: Cross multiply
    9,768.24x = 13,479.36 × 5,519.67
  4. Step 4: Simplify right side
    9,768.24x = 74,401,619.01
  5. Step 5: Solve for x
    x = 74,401,619.01/9,768.24
  6. Step 6: Final answer
    x = 7,616.69

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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.