Home / 7,831.46-11,731.53-4,709.75

Finding the Fourth Proportional to 7,831.46, 11,731.53 and 4,709.75

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Solution

The fourth proportional to 7,831.46, 11,731.53 and 4,709.75 is: 7,055.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,831.46 : 11,731.53 = 4,709.75 : x
  2. Step 2: Convert to fraction form
    7,831.46/11,731.53 = 4,709.75/x
  3. Step 3: Cross multiply
    7,831.46x = 11,731.53 × 4,709.75
  4. Step 4: Simplify right side
    7,831.46x = 55,252,602.75
  5. Step 5: Solve for x
    x = 55,252,602.75/7,831.46
  6. Step 6: Final answer
    x = 7,055.21

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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.