Home / 12,176.28-16,805.67-6,871.20

Finding the Fourth Proportional to 12,176.28, 16,805.67 and 6,871.20

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Solution

The fourth proportional to 12,176.28, 16,805.67 and 6,871.20 is: 9,483.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,176.28 : 16,805.67 = 6,871.20 : x
  2. Step 2: Convert to fraction form
    12,176.28/16,805.67 = 6,871.20/x
  3. Step 3: Cross multiply
    12,176.28x = 16,805.67 × 6,871.20
  4. Step 4: Simplify right side
    12,176.28x = 115,475,119.70
  5. Step 5: Solve for x
    x = 115,475,119.70/12,176.28
  6. Step 6: Final answer
    x = 9,483.61

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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.