Home / 12,100.92-16,702.75-7,320.88

Finding the Fourth Proportional to 12,100.92, 16,702.75 and 7,320.88

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Solution

The fourth proportional to 12,100.92, 16,702.75 and 7,320.88 is: 10,104.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,100.92 : 16,702.75 = 7,320.88 : x
  2. Step 2: Convert to fraction form
    12,100.92/16,702.75 = 7,320.88/x
  3. Step 3: Cross multiply
    12,100.92x = 16,702.75 × 7,320.88
  4. Step 4: Simplify right side
    12,100.92x = 122,278,828.42
  5. Step 5: Solve for x
    x = 122,278,828.42/12,100.92
  6. Step 6: Final answer
    x = 10,104.92

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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.