Home / 15,676.40-21,633.46-8,602.86

Finding the Fourth Proportional to 15,676.40, 21,633.46 and 8,602.86

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Solution

The fourth proportional to 15,676.40, 21,633.46 and 8,602.86 is: 11,871.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,676.40 : 21,633.46 = 8,602.86 : x
  2. Step 2: Convert to fraction form
    15,676.40/21,633.46 = 8,602.86/x
  3. Step 3: Cross multiply
    15,676.40x = 21,633.46 × 8,602.86
  4. Step 4: Simplify right side
    15,676.40x = 186,109,627.70
  5. Step 5: Solve for x
    x = 186,109,627.70/15,676.40
  6. Step 6: Final answer
    x = 11,871.96

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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.