Home / 7,018.14-9,685.09-3,831.46

Finding the Fourth Proportional to 7,018.14, 9,685.09 and 3,831.46

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Solution

The fourth proportional to 7,018.14, 9,685.09 and 3,831.46 is: 5,287.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,018.14 : 9,685.09 = 3,831.46 : x
  2. Step 2: Convert to fraction form
    7,018.14/9,685.09 = 3,831.46/x
  3. Step 3: Cross multiply
    7,018.14x = 9,685.09 × 3,831.46
  4. Step 4: Simplify right side
    7,018.14x = 37,108,034.93
  5. Step 5: Solve for x
    x = 37,108,034.93/7,018.14
  6. Step 6: Final answer
    x = 5,287.45

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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.