Home / 12,269.78-18,409.02-5,246.84

Finding the Fourth Proportional to 12,269.78, 18,409.02 and 5,246.84

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Solution

The fourth proportional to 12,269.78, 18,409.02 and 5,246.84 is: 7,872.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,269.78 : 18,409.02 = 5,246.84 : x
  2. Step 2: Convert to fraction form
    12,269.78/18,409.02 = 5,246.84/x
  3. Step 3: Cross multiply
    12,269.78x = 18,409.02 × 5,246.84
  4. Step 4: Simplify right side
    12,269.78x = 96,589,182.50
  5. Step 5: Solve for x
    x = 96,589,182.50/12,269.78
  6. Step 6: Final answer
    x = 7,872.12

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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.