Home / 7,727.75-10,660.49-5,206.63

Finding the Fourth Proportional to 7,727.75, 10,660.49 and 5,206.63

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Solution

The fourth proportional to 7,727.75, 10,660.49 and 5,206.63 is: 7,182.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,727.75 : 10,660.49 = 5,206.63 : x
  2. Step 2: Convert to fraction form
    7,727.75/10,660.49 = 5,206.63/x
  3. Step 3: Cross multiply
    7,727.75x = 10,660.49 × 5,206.63
  4. Step 4: Simplify right side
    7,727.75x = 55,505,199.23
  5. Step 5: Solve for x
    x = 55,505,199.23/7,727.75
  6. Step 6: Final answer
    x = 7,182.58

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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.