Home / 10,885.18-15,021.30-6,169.48

Finding the Fourth Proportional to 10,885.18, 15,021.30 and 6,169.48

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Solution

The fourth proportional to 10,885.18, 15,021.30 and 6,169.48 is: 8,513.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,885.18 : 15,021.30 = 6,169.48 : x
  2. Step 2: Convert to fraction form
    10,885.18/15,021.30 = 6,169.48/x
  3. Step 3: Cross multiply
    10,885.18x = 15,021.30 × 6,169.48
  4. Step 4: Simplify right side
    10,885.18x = 92,673,609.92
  5. Step 5: Solve for x
    x = 92,673,609.92/10,885.18
  6. Step 6: Final answer
    x = 8,513.74

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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.