Home / 10,958.49-16,445.03-5,115.56

Finding the Fourth Proportional to 10,958.49, 16,445.03 and 5,115.56

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Solution

The fourth proportional to 10,958.49, 16,445.03 and 5,115.56 is: 7,676.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,958.49 : 16,445.03 = 5,115.56 : x
  2. Step 2: Convert to fraction form
    10,958.49/16,445.03 = 5,115.56/x
  3. Step 3: Cross multiply
    10,958.49x = 16,445.03 × 5,115.56
  4. Step 4: Simplify right side
    10,958.49x = 84,125,429.86
  5. Step 5: Solve for x
    x = 84,125,429.86/10,958.49
  6. Step 6: Final answer
    x = 7,676.74

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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.