Home / 7,140.83-10,723.12-4,815.79

Finding the Fourth Proportional to 7,140.83, 10,723.12 and 4,815.79

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Solution

The fourth proportional to 7,140.83, 10,723.12 and 4,815.79 is: 7,231.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,140.83 : 10,723.12 = 4,815.79 : x
  2. Step 2: Convert to fraction form
    7,140.83/10,723.12 = 4,815.79/x
  3. Step 3: Cross multiply
    7,140.83x = 10,723.12 × 4,815.79
  4. Step 4: Simplify right side
    7,140.83x = 51,640,255.22
  5. Step 5: Solve for x
    x = 51,640,255.22/7,140.83
  6. Step 6: Final answer
    x = 7,231.69

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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.