Home / 8,650.20-12,953.70-5,712.60

Finding the Fourth Proportional to 8,650.20, 12,953.70 and 5,712.60

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Solution

The fourth proportional to 8,650.20, 12,953.70 and 5,712.60 is: 8,554.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,650.20 : 12,953.70 = 5,712.60 : x
  2. Step 2: Convert to fraction form
    8,650.20/12,953.70 = 5,712.60/x
  3. Step 3: Cross multiply
    8,650.20x = 12,953.70 × 5,712.60
  4. Step 4: Simplify right side
    8,650.20x = 73,999,306.62
  5. Step 5: Solve for x
    x = 73,999,306.62/8,650.20
  6. Step 6: Final answer
    x = 8,554.64

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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.