Home / 11,795.78-16,278.50-6,490.94

Finding the Fourth Proportional to 11,795.78, 16,278.50 and 6,490.94

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Solution

The fourth proportional to 11,795.78, 16,278.50 and 6,490.94 is: 8,957.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,795.78 : 16,278.50 = 6,490.94 : x
  2. Step 2: Convert to fraction form
    11,795.78/16,278.50 = 6,490.94/x
  3. Step 3: Cross multiply
    11,795.78x = 16,278.50 × 6,490.94
  4. Step 4: Simplify right side
    11,795.78x = 105,662,701.62
  5. Step 5: Solve for x
    x = 105,662,701.62/11,795.78
  6. Step 6: Final answer
    x = 8,957.67

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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.