Home / 21,096.45-29,114.87-12,146.85

Finding the Fourth Proportional to 21,096.45, 29,114.87 and 12,146.85

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Solution

The fourth proportional to 21,096.45, 29,114.87 and 12,146.85 is: 16,763.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,096.45 : 29,114.87 = 12,146.85 : x
  2. Step 2: Convert to fraction form
    21,096.45/29,114.87 = 12,146.85/x
  3. Step 3: Cross multiply
    21,096.45x = 29,114.87 × 12,146.85
  4. Step 4: Simplify right side
    21,096.45x = 353,653,897.93
  5. Step 5: Solve for x
    x = 353,653,897.93/21,096.45
  6. Step 6: Final answer
    x = 16,763.67

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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.