Home / 11,953.20-16,495.12-6,916.72

Finding the Fourth Proportional to 11,953.20, 16,495.12 and 6,916.72

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Solution

The fourth proportional to 11,953.20, 16,495.12 and 6,916.72 is: 9,544.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,953.20 : 16,495.12 = 6,916.72 : x
  2. Step 2: Convert to fraction form
    11,953.20/16,495.12 = 6,916.72/x
  3. Step 3: Cross multiply
    11,953.20x = 16,495.12 × 6,916.72
  4. Step 4: Simplify right side
    11,953.20x = 114,092,067.88
  5. Step 5: Solve for x
    x = 114,092,067.88/11,953.20
  6. Step 6: Final answer
    x = 9,544.90

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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.