Home / 12,916.49-19,376.87-5,516.53

Finding the Fourth Proportional to 12,916.49, 19,376.87 and 5,516.53

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Solution

The fourth proportional to 12,916.49, 19,376.87 and 5,516.53 is: 8,275.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,916.49 : 19,376.87 = 5,516.53 : x
  2. Step 2: Convert to fraction form
    12,916.49/19,376.87 = 5,516.53/x
  3. Step 3: Cross multiply
    12,916.49x = 19,376.87 × 5,516.53
  4. Step 4: Simplify right side
    12,916.49x = 106,893,008.64
  5. Step 5: Solve for x
    x = 106,893,008.64/12,916.49
  6. Step 6: Final answer
    x = 8,275.70

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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.