Home / 8,752.70-13,128.81-2,829.58

Finding the Fourth Proportional to 8,752.70, 13,128.81 and 2,829.58

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Solution

The fourth proportional to 8,752.70, 13,128.81 and 2,829.58 is: 4,244.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,752.70 : 13,128.81 = 2,829.58 : x
  2. Step 2: Convert to fraction form
    8,752.70/13,128.81 = 2,829.58/x
  3. Step 3: Cross multiply
    8,752.70x = 13,128.81 × 2,829.58
  4. Step 4: Simplify right side
    8,752.70x = 37,149,018.20
  5. Step 5: Solve for x
    x = 37,149,018.20/8,752.70
  6. Step 6: Final answer
    x = 4,244.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.