Home / 10,518.66-15,775.75-3,945.33

Finding the Fourth Proportional to 10,518.66, 15,775.75 and 3,945.33

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Solution

The fourth proportional to 10,518.66, 15,775.75 and 3,945.33 is: 5,917.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,518.66 : 15,775.75 = 3,945.33 : x
  2. Step 2: Convert to fraction form
    10,518.66/15,775.75 = 3,945.33/x
  3. Step 3: Cross multiply
    10,518.66x = 15,775.75 × 3,945.33
  4. Step 4: Simplify right side
    10,518.66x = 62,240,539.75
  5. Step 5: Solve for x
    x = 62,240,539.75/10,518.66
  6. Step 6: Final answer
    x = 5,917.15

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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.