Home / 8,630.36-12,945.52-3,435

Finding the Fourth Proportional to 8,630.36, 12,945.52 and 3,435

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Solution

The fourth proportional to 8,630.36, 12,945.52 and 3,435 is: 5,152.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,630.36 : 12,945.52 = 3,435 : x
  2. Step 2: Convert to fraction form
    8,630.36/12,945.52 = 3,435/x
  3. Step 3: Cross multiply
    8,630.36x = 12,945.52 × 3,435
  4. Step 4: Simplify right side
    8,630.36x = 44,467,861.20
  5. Step 5: Solve for x
    x = 44,467,861.20/8,630.36
  6. Step 6: Final answer
    x = 5,152.49

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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.