Home / 8,079.86-11,148.89-4,542.36

Finding the Fourth Proportional to 8,079.86, 11,148.89 and 4,542.36

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Solution

The fourth proportional to 8,079.86, 11,148.89 and 4,542.36 is: 6,267.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,079.86 : 11,148.89 = 4,542.36 : x
  2. Step 2: Convert to fraction form
    8,079.86/11,148.89 = 4,542.36/x
  3. Step 3: Cross multiply
    8,079.86x = 11,148.89 × 4,542.36
  4. Step 4: Simplify right side
    8,079.86x = 50,642,249.27
  5. Step 5: Solve for x
    x = 50,642,249.27/8,079.86
  6. Step 6: Final answer
    x = 6,267.72

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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.