Home / 7,478.48-11,208.12-3,577.04

Finding the Fourth Proportional to 7,478.48, 11,208.12 and 3,577.04

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Solution

The fourth proportional to 7,478.48, 11,208.12 and 3,577.04 is: 5,360.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,478.48 : 11,208.12 = 3,577.04 : x
  2. Step 2: Convert to fraction form
    7,478.48/11,208.12 = 3,577.04/x
  3. Step 3: Cross multiply
    7,478.48x = 11,208.12 × 3,577.04
  4. Step 4: Simplify right side
    7,478.48x = 40,091,893.56
  5. Step 5: Solve for x
    x = 40,091,893.56/7,478.48
  6. Step 6: Final answer
    x = 5,360.97

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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.