Home / 12,177.83-16,805.37-6,872.61

Finding the Fourth Proportional to 12,177.83, 16,805.37 and 6,872.61

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Solution

The fourth proportional to 12,177.83, 16,805.37 and 6,872.61 is: 9,484.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,177.83 : 16,805.37 = 6,872.61 : x
  2. Step 2: Convert to fraction form
    12,177.83/16,805.37 = 6,872.61/x
  3. Step 3: Cross multiply
    12,177.83x = 16,805.37 × 6,872.61
  4. Step 4: Simplify right side
    12,177.83x = 115,496,842.71
  5. Step 5: Solve for x
    x = 115,496,842.71/12,177.83
  6. Step 6: Final answer
    x = 9,484.19

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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.