Home / 10,638.18-14,681.33-6,163.34

Finding the Fourth Proportional to 10,638.18, 14,681.33 and 6,163.34

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Solution

The fourth proportional to 10,638.18, 14,681.33 and 6,163.34 is: 8,505.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,638.18 : 14,681.33 = 6,163.34 : x
  2. Step 2: Convert to fraction form
    10,638.18/14,681.33 = 6,163.34/x
  3. Step 3: Cross multiply
    10,638.18x = 14,681.33 × 6,163.34
  4. Step 4: Simplify right side
    10,638.18x = 90,486,028.44
  5. Step 5: Solve for x
    x = 90,486,028.44/10,638.18
  6. Step 6: Final answer
    x = 8,505.78

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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.