Home / 11,108.67-16,665.75-7,828.17

Finding the Fourth Proportional to 11,108.67, 16,665.75 and 7,828.17

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Solution

The fourth proportional to 11,108.67, 16,665.75 and 7,828.17 is: 11,744.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,108.67 : 16,665.75 = 7,828.17 : x
  2. Step 2: Convert to fraction form
    11,108.67/16,665.75 = 7,828.17/x
  3. Step 3: Cross multiply
    11,108.67x = 16,665.75 × 7,828.17
  4. Step 4: Simplify right side
    11,108.67x = 130,462,324.18
  5. Step 5: Solve for x
    x = 130,462,324.18/11,108.67
  6. Step 6: Final answer
    x = 11,744.19

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1.5x scale

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.