Home / 8,915.91-13,374.06-3,071.76

Finding the Fourth Proportional to 8,915.91, 13,374.06 and 3,071.76

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Solution

The fourth proportional to 8,915.91, 13,374.06 and 3,071.76 is: 4,607.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,915.91 : 13,374.06 = 3,071.76 : x
  2. Step 2: Convert to fraction form
    8,915.91/13,374.06 = 3,071.76/x
  3. Step 3: Cross multiply
    8,915.91x = 13,374.06 × 3,071.76
  4. Step 4: Simplify right side
    8,915.91x = 41,081,902.55
  5. Step 5: Solve for x
    x = 41,081,902.55/8,915.91
  6. Step 6: Final answer
    x = 4,607.71

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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.