Home / 13,930.77-19,213.25-12,248.61

Finding the Fourth Proportional to 13,930.77, 19,213.25 and 12,248.61

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Solution

The fourth proportional to 13,930.77, 19,213.25 and 12,248.61 is: 16,893.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,930.77 : 19,213.25 = 12,248.61 : x
  2. Step 2: Convert to fraction form
    13,930.77/19,213.25 = 12,248.61/x
  3. Step 3: Cross multiply
    13,930.77x = 19,213.25 × 12,248.61
  4. Step 4: Simplify right side
    13,930.77x = 235,335,544.84
  5. Step 5: Solve for x
    x = 235,335,544.84/13,930.77
  6. Step 6: Final answer
    x = 16,893.22

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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.