Home / 15,750.04-21,735.12-8,676.44

Finding the Fourth Proportional to 15,750.04, 21,735.12 and 8,676.44

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Solution

The fourth proportional to 15,750.04, 21,735.12 and 8,676.44 is: 11,973.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,750.04 : 21,735.12 = 8,676.44 : x
  2. Step 2: Convert to fraction form
    15,750.04/21,735.12 = 8,676.44/x
  3. Step 3: Cross multiply
    15,750.04x = 21,735.12 × 8,676.44
  4. Step 4: Simplify right side
    15,750.04x = 188,583,464.57
  5. Step 5: Solve for x
    x = 188,583,464.57/15,750.04
  6. Step 6: Final answer
    x = 11,973.52

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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.