Home / 11,831.70-16,330.50-7,852.98

Finding the Fourth Proportional to 11,831.70, 16,330.50 and 7,852.98

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Solution

The fourth proportional to 11,831.70, 16,330.50 and 7,852.98 is: 10,838.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,831.70 : 16,330.50 = 7,852.98 : x
  2. Step 2: Convert to fraction form
    11,831.70/16,330.50 = 7,852.98/x
  3. Step 3: Cross multiply
    11,831.70x = 16,330.50 × 7,852.98
  4. Step 4: Simplify right side
    11,831.70x = 128,243,089.89
  5. Step 5: Solve for x
    x = 128,243,089.89/11,831.70
  6. Step 6: Final answer
    x = 10,838.94

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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.