Home / 11,916.18-17,876.22-4,894.32

Finding the Fourth Proportional to 11,916.18, 17,876.22 and 4,894.32

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Solution

The fourth proportional to 11,916.18, 17,876.22 and 4,894.32 is: 7,342.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,916.18 : 17,876.22 = 4,894.32 : x
  2. Step 2: Convert to fraction form
    11,916.18/17,876.22 = 4,894.32/x
  3. Step 3: Cross multiply
    11,916.18x = 17,876.22 × 4,894.32
  4. Step 4: Simplify right side
    11,916.18x = 87,491,941.07
  5. Step 5: Solve for x
    x = 87,491,941.07/11,916.18
  6. Step 6: Final answer
    x = 7,342.28

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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.