Home / 7,917.55-10,930.75-5,911.99

Finding the Fourth Proportional to 7,917.55, 10,930.75 and 5,911.99

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Solution

The fourth proportional to 7,917.55, 10,930.75 and 5,911.99 is: 8,161.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,917.55 : 10,930.75 = 5,911.99 : x
  2. Step 2: Convert to fraction form
    7,917.55/10,930.75 = 5,911.99/x
  3. Step 3: Cross multiply
    7,917.55x = 10,930.75 × 5,911.99
  4. Step 4: Simplify right side
    7,917.55x = 64,622,442.59
  5. Step 5: Solve for x
    x = 64,622,442.59/7,917.55
  6. Step 6: Final answer
    x = 8,161.93

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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.