Home / 12,411.18-17,117.97-8,634.35

Finding the Fourth Proportional to 12,411.18, 17,117.97 and 8,634.35

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Solution

The fourth proportional to 12,411.18, 17,117.97 and 8,634.35 is: 11,908.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,411.18 : 17,117.97 = 8,634.35 : x
  2. Step 2: Convert to fraction form
    12,411.18/17,117.97 = 8,634.35/x
  3. Step 3: Cross multiply
    12,411.18x = 17,117.97 × 8,634.35
  4. Step 4: Simplify right side
    12,411.18x = 147,802,458.68
  5. Step 5: Solve for x
    x = 147,802,458.68/12,411.18
  6. Step 6: Final answer
    x = 11,908.82

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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.