Home / 12,128.13-16,741.49-9,341.73

Finding the Fourth Proportional to 12,128.13, 16,741.49 and 9,341.73

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Solution

The fourth proportional to 12,128.13, 16,741.49 and 9,341.73 is: 12,895.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,128.13 : 16,741.49 = 9,341.73 : x
  2. Step 2: Convert to fraction form
    12,128.13/16,741.49 = 9,341.73/x
  3. Step 3: Cross multiply
    12,128.13x = 16,741.49 × 9,341.73
  4. Step 4: Simplify right side
    12,128.13x = 156,394,432.67
  5. Step 5: Solve for x
    x = 156,394,432.67/12,128.13
  6. Step 6: Final answer
    x = 12,895.18

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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.