Home / 11,916.72-16,447.18-6,880.24

Finding the Fourth Proportional to 11,916.72, 16,447.18 and 6,880.24

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Solution

The fourth proportional to 11,916.72, 16,447.18 and 6,880.24 is: 9,495.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,916.72 : 16,447.18 = 6,880.24 : x
  2. Step 2: Convert to fraction form
    11,916.72/16,447.18 = 6,880.24/x
  3. Step 3: Cross multiply
    11,916.72x = 16,447.18 × 6,880.24
  4. Step 4: Simplify right side
    11,916.72x = 113,160,545.72
  5. Step 5: Solve for x
    x = 113,160,545.72/11,916.72
  6. Step 6: Final answer
    x = 9,495.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.