Home / 11,313.10-16,974.78-4,740.76

Finding the Fourth Proportional to 11,313.10, 16,974.78 and 4,740.76

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Solution

The fourth proportional to 11,313.10, 16,974.78 and 4,740.76 is: 7,113.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,313.10 : 16,974.78 = 4,740.76 : x
  2. Step 2: Convert to fraction form
    11,313.10/16,974.78 = 4,740.76/x
  3. Step 3: Cross multiply
    11,313.10x = 16,974.78 × 4,740.76
  4. Step 4: Simplify right side
    11,313.10x = 80,473,358.03
  5. Step 5: Solve for x
    x = 80,473,358.03/11,313.10
  6. Step 6: Final answer
    x = 7,113.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.