Home / 7,416.70-11,112.73-5,220.81

Finding the Fourth Proportional to 7,416.70, 11,112.73 and 5,220.81

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Solution

The fourth proportional to 7,416.70, 11,112.73 and 5,220.81 is: 7,822.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,416.70 : 11,112.73 = 5,220.81 : x
  2. Step 2: Convert to fraction form
    7,416.70/11,112.73 = 5,220.81/x
  3. Step 3: Cross multiply
    7,416.70x = 11,112.73 × 5,220.81
  4. Step 4: Simplify right side
    7,416.70x = 58,017,451.91
  5. Step 5: Solve for x
    x = 58,017,451.91/7,416.70
  6. Step 6: Final answer
    x = 7,822.54

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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.