Home / 11,358.72-15,676.56-8,559.36

Finding the Fourth Proportional to 11,358.72, 15,676.56 and 8,559.36

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Solution

The fourth proportional to 11,358.72, 15,676.56 and 8,559.36 is: 11,813.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,358.72 : 15,676.56 = 8,559.36 : x
  2. Step 2: Convert to fraction form
    11,358.72/15,676.56 = 8,559.36/x
  3. Step 3: Cross multiply
    11,358.72x = 15,676.56 × 8,559.36
  4. Step 4: Simplify right side
    11,358.72x = 134,181,320.60
  5. Step 5: Solve for x
    x = 134,181,320.60/11,358.72
  6. Step 6: Final answer
    x = 11,813.07

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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.