Home / 15,050.12-20,769.38-8,676.59

Finding the Fourth Proportional to 15,050.12, 20,769.38 and 8,676.59

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Solution

The fourth proportional to 15,050.12, 20,769.38 and 8,676.59 is: 11,973.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,050.12 : 20,769.38 = 8,676.59 : x
  2. Step 2: Convert to fraction form
    15,050.12/20,769.38 = 8,676.59/x
  3. Step 3: Cross multiply
    15,050.12x = 20,769.38 × 8,676.59
  4. Step 4: Simplify right side
    15,050.12x = 180,207,280.12
  5. Step 5: Solve for x
    x = 180,207,280.12/15,050.12
  6. Step 6: Final answer
    x = 11,973.81

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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.