Home / 7,831.20-10,806.44-4,473.55

Finding the Fourth Proportional to 7,831.20, 10,806.44 and 4,473.55

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Solution

The fourth proportional to 7,831.20, 10,806.44 and 4,473.55 is: 6,173.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,831.20 : 10,806.44 = 4,473.55 : x
  2. Step 2: Convert to fraction form
    7,831.20/10,806.44 = 4,473.55/x
  3. Step 3: Cross multiply
    7,831.20x = 10,806.44 × 4,473.55
  4. Step 4: Simplify right side
    7,831.20x = 48,343,149.66
  5. Step 5: Solve for x
    x = 48,343,149.66/7,831.20
  6. Step 6: Final answer
    x = 6,173.15

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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.