Home / 11,661.12-17,491.36-3,875.52

Finding the Fourth Proportional to 11,661.12, 17,491.36 and 3,875.52

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Solution

The fourth proportional to 11,661.12, 17,491.36 and 3,875.52 is: 5,813.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,661.12 : 17,491.36 = 3,875.52 : x
  2. Step 2: Convert to fraction form
    11,661.12/17,491.36 = 3,875.52/x
  3. Step 3: Cross multiply
    11,661.12x = 17,491.36 × 3,875.52
  4. Step 4: Simplify right side
    11,661.12x = 67,788,115.51
  5. Step 5: Solve for x
    x = 67,788,115.51/11,661.12
  6. Step 6: Final answer
    x = 5,813.17

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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.