Home / 7,981.07-11,013.45-4,623.62

Finding the Fourth Proportional to 7,981.07, 11,013.45 and 4,623.62

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Solution

The fourth proportional to 7,981.07, 11,013.45 and 4,623.62 is: 6,380.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,981.07 : 11,013.45 = 4,623.62 : x
  2. Step 2: Convert to fraction form
    7,981.07/11,013.45 = 4,623.62/x
  3. Step 3: Cross multiply
    7,981.07x = 11,013.45 × 4,623.62
  4. Step 4: Simplify right side
    7,981.07x = 50,922,007.69
  5. Step 5: Solve for x
    x = 50,922,007.69/7,981.07
  6. Step 6: Final answer
    x = 6,380.35

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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.