Home / 8,991.36-13,478.32-4,610.88

Finding the Fourth Proportional to 8,991.36, 13,478.32 and 4,610.88

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Solution

The fourth proportional to 8,991.36, 13,478.32 and 4,610.88 is: 6,911.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,991.36 : 13,478.32 = 4,610.88 : x
  2. Step 2: Convert to fraction form
    8,991.36/13,478.32 = 4,610.88/x
  3. Step 3: Cross multiply
    8,991.36x = 13,478.32 × 4,610.88
  4. Step 4: Simplify right side
    8,991.36x = 62,146,916.12
  5. Step 5: Solve for x
    x = 62,146,916.12/8,991.36
  6. Step 6: Final answer
    x = 6,911.85

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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.