Home / 12,178.38-16,805.84-6,873.15

Finding the Fourth Proportional to 12,178.38, 16,805.84 and 6,873.15

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Solution

The fourth proportional to 12,178.38, 16,805.84 and 6,873.15 is: 9,484.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,178.38 : 16,805.84 = 6,873.15 : x
  2. Step 2: Convert to fraction form
    12,178.38/16,805.84 = 6,873.15/x
  3. Step 3: Cross multiply
    12,178.38x = 16,805.84 × 6,873.15
  4. Step 4: Simplify right side
    12,178.38x = 115,509,136.18
  5. Step 5: Solve for x
    x = 115,509,136.18/12,178.38
  6. Step 6: Final answer
    x = 9,484.77

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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.