Home / 8,220.48-11,343.69-5,192.07

Finding the Fourth Proportional to 8,220.48, 11,343.69 and 5,192.07

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Solution

The fourth proportional to 8,220.48, 11,343.69 and 5,192.07 is: 7,164.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,220.48 : 11,343.69 = 5,192.07 : x
  2. Step 2: Convert to fraction form
    8,220.48/11,343.69 = 5,192.07/x
  3. Step 3: Cross multiply
    8,220.48x = 11,343.69 × 5,192.07
  4. Step 4: Simplify right side
    8,220.48x = 58,897,232.54
  5. Step 5: Solve for x
    x = 58,897,232.54/8,220.48
  6. Step 6: Final answer
    x = 7,164.70

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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.