Home / 8,536.79-11,781.85-5,179.41

Finding the Fourth Proportional to 8,536.79, 11,781.85 and 5,179.41

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Solution

The fourth proportional to 8,536.79, 11,781.85 and 5,179.41 is: 7,148.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,536.79 : 11,781.85 = 5,179.41 : x
  2. Step 2: Convert to fraction form
    8,536.79/11,781.85 = 5,179.41/x
  3. Step 3: Cross multiply
    8,536.79x = 11,781.85 × 5,179.41
  4. Step 4: Simplify right side
    8,536.79x = 61,023,031.71
  5. Step 5: Solve for x
    x = 61,023,031.71/8,536.79
  6. Step 6: Final answer
    x = 7,148.24

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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.