Home / 8,606.40-12,898.83-3,670.28

Finding the Fourth Proportional to 8,606.40, 12,898.83 and 3,670.28

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Solution

The fourth proportional to 8,606.40, 12,898.83 and 3,670.28 is: 5,500.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,606.40 : 12,898.83 = 3,670.28 : x
  2. Step 2: Convert to fraction form
    8,606.40/12,898.83 = 3,670.28/x
  3. Step 3: Cross multiply
    8,606.40x = 12,898.83 × 3,670.28
  4. Step 4: Simplify right side
    8,606.40x = 47,342,315.41
  5. Step 5: Solve for x
    x = 47,342,315.41/8,606.40
  6. Step 6: Final answer
    x = 5,500.83

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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.