Home / 12,079.89-18,116.33-4,682.70

Finding the Fourth Proportional to 12,079.89, 18,116.33 and 4,682.70

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Solution

The fourth proportional to 12,079.89, 18,116.33 and 4,682.70 is: 7,022.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,079.89 : 18,116.33 = 4,682.70 : x
  2. Step 2: Convert to fraction form
    12,079.89/18,116.33 = 4,682.70/x
  3. Step 3: Cross multiply
    12,079.89x = 18,116.33 × 4,682.70
  4. Step 4: Simplify right side
    12,079.89x = 84,833,315.08
  5. Step 5: Solve for x
    x = 84,833,315.08/12,079.89
  6. Step 6: Final answer
    x = 7,022.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.