Home / 13,911.08-19,196.60-7,861.19

Finding the Fourth Proportional to 13,911.08, 19,196.60 and 7,861.19

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Solution

The fourth proportional to 13,911.08, 19,196.60 and 7,861.19 is: 10,848.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,911.08 : 19,196.60 = 7,861.19 : x
  2. Step 2: Convert to fraction form
    13,911.08/19,196.60 = 7,861.19/x
  3. Step 3: Cross multiply
    13,911.08x = 19,196.60 × 7,861.19
  4. Step 4: Simplify right side
    13,911.08x = 150,907,984.67
  5. Step 5: Solve for x
    x = 150,907,984.67/13,911.08
  6. Step 6: Final answer
    x = 10,848.05

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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.