Home / 7,716.48-11,571.76-2,784.88

Finding the Fourth Proportional to 7,716.48, 11,571.76 and 2,784.88

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Solution

The fourth proportional to 7,716.48, 11,571.76 and 2,784.88 is: 4,176.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,716.48 : 11,571.76 = 2,784.88 : x
  2. Step 2: Convert to fraction form
    7,716.48/11,571.76 = 2,784.88/x
  3. Step 3: Cross multiply
    7,716.48x = 11,571.76 × 2,784.88
  4. Step 4: Simplify right side
    7,716.48x = 32,225,962.99
  5. Step 5: Solve for x
    x = 32,225,962.99/7,716.48
  6. Step 6: Final answer
    x = 4,176.25

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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.