Home / 7,831.35-11,743.55-5,630.88

Finding the Fourth Proportional to 7,831.35, 11,743.55 and 5,630.88

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Solution

The fourth proportional to 7,831.35, 11,743.55 and 5,630.88 is: 8,443.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,831.35 : 11,743.55 = 5,630.88 : x
  2. Step 2: Convert to fraction form
    7,831.35/11,743.55 = 5,630.88/x
  3. Step 3: Cross multiply
    7,831.35x = 11,743.55 × 5,630.88
  4. Step 4: Simplify right side
    7,831.35x = 66,126,520.82
  5. Step 5: Solve for x
    x = 66,126,520.82/7,831.35
  6. Step 6: Final answer
    x = 8,443.82

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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.