Home / 7,943.07-11,913.67-2,100.13

Finding the Fourth Proportional to 7,943.07, 11,913.67 and 2,100.13

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Solution

The fourth proportional to 7,943.07, 11,913.67 and 2,100.13 is: 3,149.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,943.07 : 11,913.67 = 2,100.13 : x
  2. Step 2: Convert to fraction form
    7,943.07/11,913.67 = 2,100.13/x
  3. Step 3: Cross multiply
    7,943.07x = 11,913.67 × 2,100.13
  4. Step 4: Simplify right side
    7,943.07x = 25,020,255.78
  5. Step 5: Solve for x
    x = 25,020,255.78/7,943.07
  6. Step 6: Final answer
    x = 3,149.95

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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.