Home / 7,860.77-10,847.69-4,505.56

Finding the Fourth Proportional to 7,860.77, 10,847.69 and 4,505.56

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Solution

The fourth proportional to 7,860.77, 10,847.69 and 4,505.56 is: 6,217.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,860.77 : 10,847.69 = 4,505.56 : x
  2. Step 2: Convert to fraction form
    7,860.77/10,847.69 = 4,505.56/x
  3. Step 3: Cross multiply
    7,860.77x = 10,847.69 × 4,505.56
  4. Step 4: Simplify right side
    7,860.77x = 48,874,940.67
  5. Step 5: Solve for x
    x = 48,874,940.67/7,860.77
  6. Step 6: Final answer
    x = 6,217.58

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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.