Home / 7,447.20-11,170.80-2,518.08

Finding the Fourth Proportional to 7,447.20, 11,170.80 and 2,518.08

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Solution

The fourth proportional to 7,447.20, 11,170.80 and 2,518.08 is: 3,777.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,447.20 : 11,170.80 = 2,518.08 : x
  2. Step 2: Convert to fraction form
    7,447.20/11,170.80 = 2,518.08/x
  3. Step 3: Cross multiply
    7,447.20x = 11,170.80 × 2,518.08
  4. Step 4: Simplify right side
    7,447.20x = 28,128,968.06
  5. Step 5: Solve for x
    x = 28,128,968.06/7,447.20
  6. Step 6: Final answer
    x = 3,777.12

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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.