Home / 11,205.62-15,437.19-7,842.50

Finding the Fourth Proportional to 11,205.62, 15,437.19 and 7,842.50

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Solution

The fourth proportional to 11,205.62, 15,437.19 and 7,842.50 is: 10,804.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,205.62 : 15,437.19 = 7,842.50 : x
  2. Step 2: Convert to fraction form
    11,205.62/15,437.19 = 7,842.50/x
  3. Step 3: Cross multiply
    11,205.62x = 15,437.19 × 7,842.50
  4. Step 4: Simplify right side
    11,205.62x = 121,066,162.58
  5. Step 5: Solve for x
    x = 121,066,162.58/11,205.62
  6. Step 6: Final answer
    x = 10,804.06

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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.