Home / 12,877.94-19,305.93-12,265.58

Finding the Fourth Proportional to 12,877.94, 19,305.93 and 12,265.58

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Solution

The fourth proportional to 12,877.94, 19,305.93 and 12,265.58 is: 18,387.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,877.94 : 19,305.93 = 12,265.58 : x
  2. Step 2: Convert to fraction form
    12,877.94/19,305.93 = 12,265.58/x
  3. Step 3: Cross multiply
    12,877.94x = 19,305.93 × 12,265.58
  4. Step 4: Simplify right side
    12,877.94x = 236,798,428.89
  5. Step 5: Solve for x
    x = 236,798,428.89/12,877.94
  6. Step 6: Final answer
    x = 18,387.91

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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.