Home / 13,979.84-19,292.71-8,012.66

Finding the Fourth Proportional to 13,979.84, 19,292.71 and 8,012.66

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Solution

The fourth proportional to 13,979.84, 19,292.71 and 8,012.66 is: 11,057.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,979.84 : 19,292.71 = 8,012.66 : x
  2. Step 2: Convert to fraction form
    13,979.84/19,292.71 = 8,012.66/x
  3. Step 3: Cross multiply
    13,979.84x = 19,292.71 × 8,012.66
  4. Step 4: Simplify right side
    13,979.84x = 154,585,953.91
  5. Step 5: Solve for x
    x = 154,585,953.91/13,979.84
  6. Step 6: Final answer
    x = 11,057.78

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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.