Home / 7,831.80-10,807.71-4,846.86

Finding the Fourth Proportional to 7,831.80, 10,807.71 and 4,846.86

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Solution

The fourth proportional to 7,831.80, 10,807.71 and 4,846.86 is: 6,688.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,831.80 : 10,807.71 = 4,846.86 : x
  2. Step 2: Convert to fraction form
    7,831.80/10,807.71 = 4,846.86/x
  3. Step 3: Cross multiply
    7,831.80x = 10,807.71 × 4,846.86
  4. Step 4: Simplify right side
    7,831.80x = 52,383,457.29
  5. Step 5: Solve for x
    x = 52,383,457.29/7,831.80
  6. Step 6: Final answer
    x = 6,688.56

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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.