Home / 11,110.19-16,672-4,870.56

Finding the Fourth Proportional to 11,110.19, 16,672 and 4,870.56

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Solution

The fourth proportional to 11,110.19, 16,672 and 4,870.56 is: 7,308.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,110.19 : 16,672 = 4,870.56 : x
  2. Step 2: Convert to fraction form
    11,110.19/16,672 = 4,870.56/x
  3. Step 3: Cross multiply
    11,110.19x = 16,672 × 4,870.56
  4. Step 4: Simplify right side
    11,110.19x = 81,201,976.32
  5. Step 5: Solve for x
    x = 81,201,976.32/11,110.19
  6. Step 6: Final answer
    x = 7,308.78

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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.