Home / 12,831.93-17,694.09-8,347.36

Finding the Fourth Proportional to 12,831.93, 17,694.09 and 8,347.36

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Solution

The fourth proportional to 12,831.93, 17,694.09 and 8,347.36 is: 11,510.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,831.93 : 17,694.09 = 8,347.36 : x
  2. Step 2: Convert to fraction form
    12,831.93/17,694.09 = 8,347.36/x
  3. Step 3: Cross multiply
    12,831.93x = 17,694.09 × 8,347.36
  4. Step 4: Simplify right side
    12,831.93x = 147,698,939.10
  5. Step 5: Solve for x
    x = 147,698,939.10/12,831.93
  6. Step 6: Final answer
    x = 11,510.27

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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.