Home / 13,645.15-18,828.97-7,676.69

Finding the Fourth Proportional to 13,645.15, 18,828.97 and 7,676.69

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Solution

The fourth proportional to 13,645.15, 18,828.97 and 7,676.69 is: 10,593.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,645.15 : 18,828.97 = 7,676.69 : x
  2. Step 2: Convert to fraction form
    13,645.15/18,828.97 = 7,676.69/x
  3. Step 3: Cross multiply
    13,645.15x = 18,828.97 × 7,676.69
  4. Step 4: Simplify right side
    13,645.15x = 144,544,146.52
  5. Step 5: Solve for x
    x = 144,544,146.52/13,645.15
  6. Step 6: Final answer
    x = 10,593.08

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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.