Home / 11,828.77-17,755.45-8,712.29

Finding the Fourth Proportional to 11,828.77, 17,755.45 and 8,712.29

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Solution

The fourth proportional to 11,828.77, 17,755.45 and 8,712.29 is: 13,077.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,828.77 : 17,755.45 = 8,712.29 : x
  2. Step 2: Convert to fraction form
    11,828.77/17,755.45 = 8,712.29/x
  3. Step 3: Cross multiply
    11,828.77x = 17,755.45 × 8,712.29
  4. Step 4: Simplify right side
    11,828.77x = 154,690,629.48
  5. Step 5: Solve for x
    x = 154,690,629.48/11,828.77
  6. Step 6: Final answer
    x = 13,077.49

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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.