Home / 12,238.27-16,884.73-8,460.07

Finding the Fourth Proportional to 12,238.27, 16,884.73 and 8,460.07

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Solution

The fourth proportional to 12,238.27, 16,884.73 and 8,460.07 is: 11,672.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,238.27 : 16,884.73 = 8,460.07 : x
  2. Step 2: Convert to fraction form
    12,238.27/16,884.73 = 8,460.07/x
  3. Step 3: Cross multiply
    12,238.27x = 16,884.73 × 8,460.07
  4. Step 4: Simplify right side
    12,238.27x = 142,845,966.09
  5. Step 5: Solve for x
    x = 142,845,966.09/12,238.27
  6. Step 6: Final answer
    x = 11,672.07

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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.