Home / 11,902.48-17,852.67-7,221.10

Finding the Fourth Proportional to 11,902.48, 17,852.67 and 7,221.10

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Solution

The fourth proportional to 11,902.48, 17,852.67 and 7,221.10 is: 10,831.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,902.48 : 17,852.67 = 7,221.10 : x
  2. Step 2: Convert to fraction form
    11,902.48/17,852.67 = 7,221.10/x
  3. Step 3: Cross multiply
    11,902.48x = 17,852.67 × 7,221.10
  4. Step 4: Simplify right side
    11,902.48x = 128,915,915.34
  5. Step 5: Solve for x
    x = 128,915,915.34/11,902.48
  6. Step 6: Final answer
    x = 10,831.01

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1.5x scale

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.