Home / 15,456.64-23,190.72-8,529.28

Finding the Fourth Proportional to 15,456.64, 23,190.72 and 8,529.28

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Solution

The fourth proportional to 15,456.64, 23,190.72 and 8,529.28 is: 12,797.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,456.64 : 23,190.72 = 8,529.28 : x
  2. Step 2: Convert to fraction form
    15,456.64/23,190.72 = 8,529.28/x
  3. Step 3: Cross multiply
    15,456.64x = 23,190.72 × 8,529.28
  4. Step 4: Simplify right side
    15,456.64x = 197,800,144.28
  5. Step 5: Solve for x
    x = 197,800,144.28/15,456.64
  6. Step 6: Final answer
    x = 12,797.10

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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.