Home / 7,841.61-10,816.34-5,009.85

Finding the Fourth Proportional to 7,841.61, 10,816.34 and 5,009.85

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Solution

The fourth proportional to 7,841.61, 10,816.34 and 5,009.85 is: 6,910.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,841.61 : 10,816.34 = 5,009.85 : x
  2. Step 2: Convert to fraction form
    7,841.61/10,816.34 = 5,009.85/x
  3. Step 3: Cross multiply
    7,841.61x = 10,816.34 × 5,009.85
  4. Step 4: Simplify right side
    7,841.61x = 54,188,215.90
  5. Step 5: Solve for x
    x = 54,188,215.90/7,841.61
  6. Step 6: Final answer
    x = 6,910.34

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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.