Home / 7,821.36-10,793.16-4,679.28

Finding the Fourth Proportional to 7,821.36, 10,793.16 and 4,679.28

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Solution

The fourth proportional to 7,821.36, 10,793.16 and 4,679.28 is: 6,457.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,821.36 : 10,793.16 = 4,679.28 : x
  2. Step 2: Convert to fraction form
    7,821.36/10,793.16 = 4,679.28/x
  3. Step 3: Cross multiply
    7,821.36x = 10,793.16 × 4,679.28
  4. Step 4: Simplify right side
    7,821.36x = 50,504,217.72
  5. Step 5: Solve for x
    x = 50,504,217.72/7,821.36
  6. Step 6: Final answer
    x = 6,457.22

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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.