Home / 12,185.93-16,815.64-6,881.27

Finding the Fourth Proportional to 12,185.93, 16,815.64 and 6,881.27

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Solution

The fourth proportional to 12,185.93, 16,815.64 and 6,881.27 is: 9,495.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,185.93 : 16,815.64 = 6,881.27 : x
  2. Step 2: Convert to fraction form
    12,185.93/16,815.64 = 6,881.27/x
  3. Step 3: Cross multiply
    12,185.93x = 16,815.64 × 6,881.27
  4. Step 4: Simplify right side
    12,185.93x = 115,712,959.06
  5. Step 5: Solve for x
    x = 115,712,959.06/12,185.93
  6. Step 6: Final answer
    x = 9,495.62

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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.