Home / 12,981.07-19,446.99-7,704.93

Finding the Fourth Proportional to 12,981.07, 19,446.99 and 7,704.93

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Solution

The fourth proportional to 12,981.07, 19,446.99 and 7,704.93 is: 11,542.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,981.07 : 19,446.99 = 7,704.93 : x
  2. Step 2: Convert to fraction form
    12,981.07/19,446.99 = 7,704.93/x
  3. Step 3: Cross multiply
    12,981.07x = 19,446.99 × 7,704.93
  4. Step 4: Simplify right side
    12,981.07x = 149,837,696.66
  5. Step 5: Solve for x
    x = 149,837,696.66/12,981.07
  6. Step 6: Final answer
    x = 11,542.78

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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.