Home / 12,149.08-16,765.66-6,845.61

Finding the Fourth Proportional to 12,149.08, 16,765.66 and 6,845.61

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Solution

The fourth proportional to 12,149.08, 16,765.66 and 6,845.61 is: 9,446.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,149.08 : 16,765.66 = 6,845.61 : x
  2. Step 2: Convert to fraction form
    12,149.08/16,765.66 = 6,845.61/x
  3. Step 3: Cross multiply
    12,149.08x = 16,765.66 × 6,845.61
  4. Step 4: Simplify right side
    12,149.08x = 114,771,068.81
  5. Step 5: Solve for x
    x = 114,771,068.81/12,149.08
  6. Step 6: Final answer
    x = 9,446.89

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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.