Home / 7,756.86-10,698.73-4,921.79

Finding the Fourth Proportional to 7,756.86, 10,698.73 and 4,921.79

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Solution

The fourth proportional to 7,756.86, 10,698.73 and 4,921.79 is: 6,788.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,756.86 : 10,698.73 = 4,921.79 : x
  2. Step 2: Convert to fraction form
    7,756.86/10,698.73 = 4,921.79/x
  3. Step 3: Cross multiply
    7,756.86x = 10,698.73 × 4,921.79
  4. Step 4: Simplify right side
    7,756.86x = 52,656,902.33
  5. Step 5: Solve for x
    x = 52,656,902.33/7,756.86
  6. Step 6: Final answer
    x = 6,788.43

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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.