Home / 11,917.14-17,857.47-6,371.28

Finding the Fourth Proportional to 11,917.14, 17,857.47 and 6,371.28

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Solution

The fourth proportional to 11,917.14, 17,857.47 and 6,371.28 is: 9,547.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,917.14 : 17,857.47 = 6,371.28 : x
  2. Step 2: Convert to fraction form
    11,917.14/17,857.47 = 6,371.28/x
  3. Step 3: Cross multiply
    11,917.14x = 17,857.47 × 6,371.28
  4. Step 4: Simplify right side
    11,917.14x = 113,774,941.46
  5. Step 5: Solve for x
    x = 113,774,941.46/11,917.14
  6. Step 6: Final answer
    x = 9,547.17

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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.