Home / 7,717.51-11,573.85-2,786.50

Finding the Fourth Proportional to 7,717.51, 11,573.85 and 2,786.50

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Solution

The fourth proportional to 7,717.51, 11,573.85 and 2,786.50 is: 4,178.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,717.51 : 11,573.85 = 2,786.50 : x
  2. Step 2: Convert to fraction form
    7,717.51/11,573.85 = 2,786.50/x
  3. Step 3: Cross multiply
    7,717.51x = 11,573.85 × 2,786.50
  4. Step 4: Simplify right side
    7,717.51x = 32,250,533.03
  5. Step 5: Solve for x
    x = 32,250,533.03/7,717.51
  6. Step 6: Final answer
    x = 4,178.88

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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.