Home / 12,351.92-18,529.12-4,031.60

Finding the Fourth Proportional to 12,351.92, 18,529.12 and 4,031.60

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Solution

The fourth proportional to 12,351.92, 18,529.12 and 4,031.60 is: 6,047.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,351.92 : 18,529.12 = 4,031.60 : x
  2. Step 2: Convert to fraction form
    12,351.92/18,529.12 = 4,031.60/x
  3. Step 3: Cross multiply
    12,351.92x = 18,529.12 × 4,031.60
  4. Step 4: Simplify right side
    12,351.92x = 74,702,000.19
  5. Step 5: Solve for x
    x = 74,702,000.19/12,351.92
  6. Step 6: Final answer
    x = 6,047.80

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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.