Home / 11,493.79-15,861.41-6,458.15

Finding the Fourth Proportional to 11,493.79, 15,861.41 and 6,458.15

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Solution

The fourth proportional to 11,493.79, 15,861.41 and 6,458.15 is: 8,912.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,493.79 : 15,861.41 = 6,458.15 : x
  2. Step 2: Convert to fraction form
    11,493.79/15,861.41 = 6,458.15/x
  3. Step 3: Cross multiply
    11,493.79x = 15,861.41 × 6,458.15
  4. Step 4: Simplify right side
    11,493.79x = 102,435,364.99
  5. Step 5: Solve for x
    x = 102,435,364.99/11,493.79
  6. Step 6: Final answer
    x = 8,912.24

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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.