Home / 11,187.03-15,429.96-9,505.77

Finding the Fourth Proportional to 11,187.03, 15,429.96 and 9,505.77

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Solution

The fourth proportional to 11,187.03, 15,429.96 and 9,505.77 is: 13,111.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,187.03 : 15,429.96 = 9,505.77 : x
  2. Step 2: Convert to fraction form
    11,187.03/15,429.96 = 9,505.77/x
  3. Step 3: Cross multiply
    11,187.03x = 15,429.96 × 9,505.77
  4. Step 4: Simplify right side
    11,187.03x = 146,673,650.87
  5. Step 5: Solve for x
    x = 146,673,650.87/11,187.03
  6. Step 6: Final answer
    x = 13,111.04

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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.