Home / 15,234.70-21,022.58-8,861.42

Finding the Fourth Proportional to 15,234.70, 21,022.58 and 8,861.42

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Solution

The fourth proportional to 15,234.70, 21,022.58 and 8,861.42 is: 12,228.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,234.70 : 21,022.58 = 8,861.42 : x
  2. Step 2: Convert to fraction form
    15,234.70/21,022.58 = 8,861.42/x
  3. Step 3: Cross multiply
    15,234.70x = 21,022.58 × 8,861.42
  4. Step 4: Simplify right side
    15,234.70x = 186,289,910.86
  5. Step 5: Solve for x
    x = 186,289,910.86/15,234.70
  6. Step 6: Final answer
    x = 12,228.00

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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.