Home / 10,813.32-16,170.56-7,861.68

Finding the Fourth Proportional to 10,813.32, 16,170.56 and 7,861.68

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Solution

The fourth proportional to 10,813.32, 16,170.56 and 7,861.68 is: 11,756.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,813.32 : 16,170.56 = 7,861.68 : x
  2. Step 2: Convert to fraction form
    10,813.32/16,170.56 = 7,861.68/x
  3. Step 3: Cross multiply
    10,813.32x = 16,170.56 × 7,861.68
  4. Step 4: Simplify right side
    10,813.32x = 127,127,768.14
  5. Step 5: Solve for x
    x = 127,127,768.14/10,813.32
  6. Step 6: Final answer
    x = 11,756.59

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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.