Home / 7,451.10-11,172.51-3,555.54

Finding the Fourth Proportional to 7,451.10, 11,172.51 and 3,555.54

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Solution

The fourth proportional to 7,451.10, 11,172.51 and 3,555.54 is: 5,331.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,451.10 : 11,172.51 = 3,555.54 : x
  2. Step 2: Convert to fraction form
    7,451.10/11,172.51 = 3,555.54/x
  3. Step 3: Cross multiply
    7,451.10x = 11,172.51 × 3,555.54
  4. Step 4: Simplify right side
    7,451.10x = 39,724,306.21
  5. Step 5: Solve for x
    x = 39,724,306.21/7,451.10
  6. Step 6: Final answer
    x = 5,331.33

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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.