Home / 12,916.68-19,376.10-4,151.76

Finding the Fourth Proportional to 12,916.68, 19,376.10 and 4,151.76

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Solution

The fourth proportional to 12,916.68, 19,376.10 and 4,151.76 is: 6,227.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,916.68 : 19,376.10 = 4,151.76 : x
  2. Step 2: Convert to fraction form
    12,916.68/19,376.10 = 4,151.76/x
  3. Step 3: Cross multiply
    12,916.68x = 19,376.10 × 4,151.76
  4. Step 4: Simplify right side
    12,916.68x = 80,444,916.94
  5. Step 5: Solve for x
    x = 80,444,916.94/12,916.68
  6. Step 6: Final answer
    x = 6,227.99

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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.