Home / 15,546.91-21,455.31-8,833.67

Finding the Fourth Proportional to 15,546.91, 21,455.31 and 8,833.67

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Solution

The fourth proportional to 15,546.91, 21,455.31 and 8,833.67 is: 12,190.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,546.91 : 21,455.31 = 8,833.67 : x
  2. Step 2: Convert to fraction form
    15,546.91/21,455.31 = 8,833.67/x
  3. Step 3: Cross multiply
    15,546.91x = 21,455.31 × 8,833.67
  4. Step 4: Simplify right side
    15,546.91x = 189,529,155.11
  5. Step 5: Solve for x
    x = 189,529,155.11/15,546.91
  6. Step 6: Final answer
    x = 12,190.80

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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.