Home / 17,110.50-23,631.93-11,511.78

Finding the Fourth Proportional to 17,110.50, 23,631.93 and 11,511.78

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Solution

The fourth proportional to 17,110.50, 23,631.93 and 11,511.78 is: 15,899.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,110.50 : 23,631.93 = 11,511.78 : x
  2. Step 2: Convert to fraction form
    17,110.50/23,631.93 = 11,511.78/x
  3. Step 3: Cross multiply
    17,110.50x = 23,631.93 × 11,511.78
  4. Step 4: Simplify right side
    17,110.50x = 272,045,579.14
  5. Step 5: Solve for x
    x = 272,045,579.14/17,110.50
  6. Step 6: Final answer
    x = 15,899.34

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1.5x scale

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.