Home / 15,748.21-21,733.28-8,942.73

Finding the Fourth Proportional to 15,748.21, 21,733.28 and 8,942.73

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Solution

The fourth proportional to 15,748.21, 21,733.28 and 8,942.73 is: 12,341.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,748.21 : 21,733.28 = 8,942.73 : x
  2. Step 2: Convert to fraction form
    15,748.21/21,733.28 = 8,942.73/x
  3. Step 3: Cross multiply
    15,748.21x = 21,733.28 × 8,942.73
  4. Step 4: Simplify right side
    15,748.21x = 194,354,855.05
  5. Step 5: Solve for x
    x = 194,354,855.05/15,748.21
  6. Step 6: Final answer
    x = 12,341.39

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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.