Home / 10,386.36-14,323.68-8,118

Finding the Fourth Proportional to 10,386.36, 14,323.68 and 8,118

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Solution

The fourth proportional to 10,386.36, 14,323.68 and 8,118 is: 11,195.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,386.36 : 14,323.68 = 8,118 : x
  2. Step 2: Convert to fraction form
    10,386.36/14,323.68 = 8,118/x
  3. Step 3: Cross multiply
    10,386.36x = 14,323.68 × 8,118
  4. Step 4: Simplify right side
    10,386.36x = 116,279,634.24
  5. Step 5: Solve for x
    x = 116,279,634.24/10,386.36
  6. Step 6: Final answer
    x = 11,195.42

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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.