Home / 7,721.58-10,650.36-4,738.86

Finding the Fourth Proportional to 7,721.58, 10,650.36 and 4,738.86

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Solution

The fourth proportional to 7,721.58, 10,650.36 and 4,738.86 is: 6,536.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,721.58 : 10,650.36 = 4,738.86 : x
  2. Step 2: Convert to fraction form
    7,721.58/10,650.36 = 4,738.86/x
  3. Step 3: Cross multiply
    7,721.58x = 10,650.36 × 4,738.86
  4. Step 4: Simplify right side
    7,721.58x = 50,470,564.99
  5. Step 5: Solve for x
    x = 50,470,564.99/7,721.58
  6. Step 6: Final answer
    x = 6,536.30

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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.