Home / 8,420.00-11,618.53-5,233.82

Finding the Fourth Proportional to 8,420.00, 11,618.53 and 5,233.82

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Solution

The fourth proportional to 8,420.00, 11,618.53 and 5,233.82 is: 7,222.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,420.00 : 11,618.53 = 5,233.82 : x
  2. Step 2: Convert to fraction form
    8,420.00/11,618.53 = 5,233.82/x
  3. Step 3: Cross multiply
    8,420.00x = 11,618.53 × 5,233.82
  4. Step 4: Simplify right side
    8,420.00x = 60,809,249.27
  5. Step 5: Solve for x
    x = 60,809,249.27/8,420.00
  6. Step 6: Final answer
    x = 7,222.00

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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.