Home / 8,536.76-11,781.50-5,180.43

Finding the Fourth Proportional to 8,536.76, 11,781.50 and 5,180.43

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Solution

The fourth proportional to 8,536.76, 11,781.50 and 5,180.43 is: 7,149.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,536.76 : 11,781.50 = 5,180.43 : x
  2. Step 2: Convert to fraction form
    8,536.76/11,781.50 = 5,180.43/x
  3. Step 3: Cross multiply
    8,536.76x = 11,781.50 × 5,180.43
  4. Step 4: Simplify right side
    8,536.76x = 61,033,214.53
  5. Step 5: Solve for x
    x = 61,033,214.53/8,536.76
  6. Step 6: Final answer
    x = 7,149.46

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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.