Home / 10,638.82-14,682.12-6,161.80

Finding the Fourth Proportional to 10,638.82, 14,682.12 and 6,161.80

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Solution

The fourth proportional to 10,638.82, 14,682.12 and 6,161.80 is: 8,503.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,638.82 : 14,682.12 = 6,161.80 : x
  2. Step 2: Convert to fraction form
    10,638.82/14,682.12 = 6,161.80/x
  3. Step 3: Cross multiply
    10,638.82x = 14,682.12 × 6,161.80
  4. Step 4: Simplify right side
    10,638.82x = 90,468,287.02
  5. Step 5: Solve for x
    x = 90,468,287.02/10,638.82
  6. Step 6: Final answer
    x = 8,503.60

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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.