Home / 8,619.53-12,930.51-3,071.69

Finding the Fourth Proportional to 8,619.53, 12,930.51 and 3,071.69

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Solution

The fourth proportional to 8,619.53, 12,930.51 and 3,071.69 is: 4,607.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,619.53 : 12,930.51 = 3,071.69 : x
  2. Step 2: Convert to fraction form
    8,619.53/12,930.51 = 3,071.69/x
  3. Step 3: Cross multiply
    8,619.53x = 12,930.51 × 3,071.69
  4. Step 4: Simplify right side
    8,619.53x = 39,718,518.26
  5. Step 5: Solve for x
    x = 39,718,518.26/8,619.53
  6. Step 6: Final answer
    x = 4,607.97

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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.