Home / 8,190.05-11,303.55-5,207.22

Finding the Fourth Proportional to 8,190.05, 11,303.55 and 5,207.22

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Solution

The fourth proportional to 8,190.05, 11,303.55 and 5,207.22 is: 7,186.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,190.05 : 11,303.55 = 5,207.22 : x
  2. Step 2: Convert to fraction form
    8,190.05/11,303.55 = 5,207.22/x
  3. Step 3: Cross multiply
    8,190.05x = 11,303.55 × 5,207.22
  4. Step 4: Simplify right side
    8,190.05x = 58,860,071.63
  5. Step 5: Solve for x
    x = 58,860,071.63/8,190.05
  6. Step 6: Final answer
    x = 7,186.78

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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.