Home / 11,061.09-15,238.32-7,698.12

Finding the Fourth Proportional to 11,061.09, 15,238.32 and 7,698.12

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Solution

The fourth proportional to 11,061.09, 15,238.32 and 7,698.12 is: 10,605.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,061.09 : 15,238.32 = 7,698.12 : x
  2. Step 2: Convert to fraction form
    11,061.09/15,238.32 = 7,698.12/x
  3. Step 3: Cross multiply
    11,061.09x = 15,238.32 × 7,698.12
  4. Step 4: Simplify right side
    11,061.09x = 117,306,415.96
  5. Step 5: Solve for x
    x = 117,306,415.96/11,061.09
  6. Step 6: Final answer
    x = 10,605.32

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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.