Home / 15,676.36-21,633.62-8,602.68

Finding the Fourth Proportional to 15,676.36, 21,633.62 and 8,602.68

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Solution

The fourth proportional to 15,676.36, 21,633.62 and 8,602.68 is: 11,871.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,676.36 : 21,633.62 = 8,602.68 : x
  2. Step 2: Convert to fraction form
    15,676.36/21,633.62 = 8,602.68/x
  3. Step 3: Cross multiply
    15,676.36x = 21,633.62 × 8,602.68
  4. Step 4: Simplify right side
    15,676.36x = 186,107,110.10
  5. Step 5: Solve for x
    x = 186,107,110.10/15,676.36
  6. Step 6: Final answer
    x = 11,871.83

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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.