Home / 12,286.54-16,955.35-6,981.36

Finding the Fourth Proportional to 12,286.54, 16,955.35 and 6,981.36

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Solution

The fourth proportional to 12,286.54, 16,955.35 and 6,981.36 is: 9,634.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,286.54 : 16,955.35 = 6,981.36 : x
  2. Step 2: Convert to fraction form
    12,286.54/16,955.35 = 6,981.36/x
  3. Step 3: Cross multiply
    12,286.54x = 16,955.35 × 6,981.36
  4. Step 4: Simplify right side
    12,286.54x = 118,371,402.28
  5. Step 5: Solve for x
    x = 118,371,402.28/12,286.54
  6. Step 6: Final answer
    x = 9,634.23

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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.