Home / 12,211.76-16,854.36-6,908.24

Finding the Fourth Proportional to 12,211.76, 16,854.36 and 6,908.24

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Solution

The fourth proportional to 12,211.76, 16,854.36 and 6,908.24 is: 9,534.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,211.76 : 16,854.36 = 6,908.24 : x
  2. Step 2: Convert to fraction form
    12,211.76/16,854.36 = 6,908.24/x
  3. Step 3: Cross multiply
    12,211.76x = 16,854.36 × 6,908.24
  4. Step 4: Simplify right side
    12,211.76x = 116,433,963.93
  5. Step 5: Solve for x
    x = 116,433,963.93/12,211.76
  6. Step 6: Final answer
    x = 9,534.58

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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.