Home / 15,676.30-21,633.33-8,602.75

Finding the Fourth Proportional to 15,676.30, 21,633.33 and 8,602.75

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Solution

The fourth proportional to 15,676.30, 21,633.33 and 8,602.75 is: 11,871.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,676.30 : 21,633.33 = 8,602.75 : x
  2. Step 2: Convert to fraction form
    15,676.30/21,633.33 = 8,602.75/x
  3. Step 3: Cross multiply
    15,676.30x = 21,633.33 × 8,602.75
  4. Step 4: Simplify right side
    15,676.30x = 186,106,129.66
  5. Step 5: Solve for x
    x = 186,106,129.66/15,676.30
  6. Step 6: Final answer
    x = 11,871.81

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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.