Home / 11,153.10-16,735.10-7,887.18

Finding the Fourth Proportional to 11,153.10, 16,735.10 and 7,887.18

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Solution

The fourth proportional to 11,153.10, 16,735.10 and 7,887.18 is: 11,834.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,153.10 : 16,735.10 = 7,887.18 : x
  2. Step 2: Convert to fraction form
    11,153.10/16,735.10 = 7,887.18/x
  3. Step 3: Cross multiply
    11,153.10x = 16,735.10 × 7,887.18
  4. Step 4: Simplify right side
    11,153.10x = 131,992,706.58
  5. Step 5: Solve for x
    x = 131,992,706.58/11,153.10
  6. Step 6: Final answer
    x = 11,834.62

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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.