Home / 11,925.20-16,453.32-8,791.76

Finding the Fourth Proportional to 11,925.20, 16,453.32 and 8,791.76

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Solution

The fourth proportional to 11,925.20, 16,453.32 and 8,791.76 is: 12,130.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,925.20 : 16,453.32 = 8,791.76 : x
  2. Step 2: Convert to fraction form
    11,925.20/16,453.32 = 8,791.76/x
  3. Step 3: Cross multiply
    11,925.20x = 16,453.32 × 8,791.76
  4. Step 4: Simplify right side
    11,925.20x = 144,653,640.64
  5. Step 5: Solve for x
    x = 144,653,640.64/11,925.20
  6. Step 6: Final answer
    x = 12,130.08

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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.