Home / 15,351.70-22,999.20-8,758.30

Finding the Fourth Proportional to 15,351.70, 22,999.20 and 8,758.30

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Solution

The fourth proportional to 15,351.70, 22,999.20 and 8,758.30 is: 13,121.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,351.70 : 22,999.20 = 8,758.30 : x
  2. Step 2: Convert to fraction form
    15,351.70/22,999.20 = 8,758.30/x
  3. Step 3: Cross multiply
    15,351.70x = 22,999.20 × 8,758.30
  4. Step 4: Simplify right side
    15,351.70x = 201,433,893.36
  5. Step 5: Solve for x
    x = 201,433,893.36/15,351.70
  6. Step 6: Final answer
    x = 13,121.28

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1.5x scale

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.