Home / 12,680.91-19,062.32-11,767.77

Finding the Fourth Proportional to 12,680.91, 19,062.32 and 11,767.77

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Solution

The fourth proportional to 12,680.91, 19,062.32 and 11,767.77 is: 17,689.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,680.91 : 19,062.32 = 11,767.77 : x
  2. Step 2: Convert to fraction form
    12,680.91/19,062.32 = 11,767.77/x
  3. Step 3: Cross multiply
    12,680.91x = 19,062.32 × 11,767.77
  4. Step 4: Simplify right side
    12,680.91x = 224,320,938.59
  5. Step 5: Solve for x
    x = 224,320,938.59/12,680.91
  6. Step 6: Final answer
    x = 17,689.66

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1.5x scale

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.