Home / 12,211.12-18,315.02-3,446.74

Finding the Fourth Proportional to 12,211.12, 18,315.02 and 3,446.74

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Solution

The fourth proportional to 12,211.12, 18,315.02 and 3,446.74 is: 5,169.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,211.12 : 18,315.02 = 3,446.74 : x
  2. Step 2: Convert to fraction form
    12,211.12/18,315.02 = 3,446.74/x
  3. Step 3: Cross multiply
    12,211.12x = 18,315.02 × 3,446.74
  4. Step 4: Simplify right side
    12,211.12x = 63,127,112.03
  5. Step 5: Solve for x
    x = 63,127,112.03/12,211.12
  6. Step 6: Final answer
    x = 5,169.64

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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.