Home / 6,756.78-10,121.73-5,289.06

Finding the Fourth Proportional to 6,756.78, 10,121.73 and 5,289.06

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Solution

The fourth proportional to 6,756.78, 10,121.73 and 5,289.06 is: 7,923.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,756.78 : 10,121.73 = 5,289.06 : x
  2. Step 2: Convert to fraction form
    6,756.78/10,121.73 = 5,289.06/x
  3. Step 3: Cross multiply
    6,756.78x = 10,121.73 × 5,289.06
  4. Step 4: Simplify right side
    6,756.78x = 53,534,437.27
  5. Step 5: Solve for x
    x = 53,534,437.27/6,756.78
  6. Step 6: Final answer
    x = 7,923.07

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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.