Home / 7,406.80-11,110.20-5,333.20

Finding the Fourth Proportional to 7,406.80, 11,110.20 and 5,333.20

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Solution

The fourth proportional to 7,406.80, 11,110.20 and 5,333.20 is: 7,999.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,406.80 : 11,110.20 = 5,333.20 : x
  2. Step 2: Convert to fraction form
    7,406.80/11,110.20 = 5,333.20/x
  3. Step 3: Cross multiply
    7,406.80x = 11,110.20 × 5,333.20
  4. Step 4: Simplify right side
    7,406.80x = 59,252,918.64
  5. Step 5: Solve for x
    x = 59,252,918.64/7,406.80
  6. Step 6: Final answer
    x = 7,999.80

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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.