Home / 9,916.30-14,869.60-4,912.88

Finding the Fourth Proportional to 9,916.30, 14,869.60 and 4,912.88

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Solution

The fourth proportional to 9,916.30, 14,869.60 and 4,912.88 is: 7,366.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,916.30 : 14,869.60 = 4,912.88 : x
  2. Step 2: Convert to fraction form
    9,916.30/14,869.60 = 4,912.88/x
  3. Step 3: Cross multiply
    9,916.30x = 14,869.60 × 4,912.88
  4. Step 4: Simplify right side
    9,916.30x = 73,052,560.45
  5. Step 5: Solve for x
    x = 73,052,560.45/9,916.30
  6. Step 6: Final answer
    x = 7,366.92

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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.