Home / 12,446.79-18,673.36-4,129.12

Finding the Fourth Proportional to 12,446.79, 18,673.36 and 4,129.12

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Solution

The fourth proportional to 12,446.79, 18,673.36 and 4,129.12 is: 6,194.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,446.79 : 18,673.36 = 4,129.12 : x
  2. Step 2: Convert to fraction form
    12,446.79/18,673.36 = 4,129.12/x
  3. Step 3: Cross multiply
    12,446.79x = 18,673.36 × 4,129.12
  4. Step 4: Simplify right side
    12,446.79x = 77,104,544.24
  5. Step 5: Solve for x
    x = 77,104,544.24/12,446.79
  6. Step 6: Final answer
    x = 6,194.74

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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.