Home / 17,113.79-25,678.80-11,856.89

Finding the Fourth Proportional to 17,113.79, 25,678.80 and 11,856.89

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Solution

The fourth proportional to 17,113.79, 25,678.80 and 11,856.89 is: 17,790.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,113.79 : 25,678.80 = 11,856.89 : x
  2. Step 2: Convert to fraction form
    17,113.79/25,678.80 = 11,856.89/x
  3. Step 3: Cross multiply
    17,113.79x = 25,678.80 × 11,856.89
  4. Step 4: Simplify right side
    17,113.79x = 304,470,578.54
  5. Step 5: Solve for x
    x = 304,470,578.54/17,113.79
  6. Step 6: Final answer
    x = 17,790.95

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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.