Home / 11,085.03-16,638.84-8,646.48

Finding the Fourth Proportional to 11,085.03, 16,638.84 and 8,646.48

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Solution

The fourth proportional to 11,085.03, 16,638.84 and 8,646.48 is: 12,978.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,085.03 : 16,638.84 = 8,646.48 : x
  2. Step 2: Convert to fraction form
    11,085.03/16,638.84 = 8,646.48/x
  3. Step 3: Cross multiply
    11,085.03x = 16,638.84 × 8,646.48
  4. Step 4: Simplify right side
    11,085.03x = 143,867,397.28
  5. Step 5: Solve for x
    x = 143,867,397.28/11,085.03
  6. Step 6: Final answer
    x = 12,978.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.