Home / 7,862.96-10,855.35-5,213.94

Finding the Fourth Proportional to 7,862.96, 10,855.35 and 5,213.94

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Solution

The fourth proportional to 7,862.96, 10,855.35 and 5,213.94 is: 7,198.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,862.96 : 10,855.35 = 5,213.94 : x
  2. Step 2: Convert to fraction form
    7,862.96/10,855.35 = 5,213.94/x
  3. Step 3: Cross multiply
    7,862.96x = 10,855.35 × 5,213.94
  4. Step 4: Simplify right side
    7,862.96x = 56,599,143.58
  5. Step 5: Solve for x
    x = 56,599,143.58/7,862.96
  6. Step 6: Final answer
    x = 7,198.20

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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.