Home / 10,318.78-14,241.99-6,129.46

Finding the Fourth Proportional to 10,318.78, 14,241.99 and 6,129.46

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Solution

The fourth proportional to 10,318.78, 14,241.99 and 6,129.46 is: 8,459.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,318.78 : 14,241.99 = 6,129.46 : x
  2. Step 2: Convert to fraction form
    10,318.78/14,241.99 = 6,129.46/x
  3. Step 3: Cross multiply
    10,318.78x = 14,241.99 × 6,129.46
  4. Step 4: Simplify right side
    10,318.78x = 87,295,708.03
  5. Step 5: Solve for x
    x = 87,295,708.03/10,318.78
  6. Step 6: Final answer
    x = 8,459.89

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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.