Home / 7,831.87-11,749.47-2,566.50

Finding the Fourth Proportional to 7,831.87, 11,749.47 and 2,566.50

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Solution

The fourth proportional to 7,831.87, 11,749.47 and 2,566.50 is: 3,850.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,831.87 : 11,749.47 = 2,566.50 : x
  2. Step 2: Convert to fraction form
    7,831.87/11,749.47 = 2,566.50/x
  3. Step 3: Cross multiply
    7,831.87x = 11,749.47 × 2,566.50
  4. Step 4: Simplify right side
    7,831.87x = 30,155,014.76
  5. Step 5: Solve for x
    x = 30,155,014.76/7,831.87
  6. Step 6: Final answer
    x = 3,850.30

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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.