Home / 12,102.55-16,696.85-8,923.40

Finding the Fourth Proportional to 12,102.55, 16,696.85 and 8,923.40

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Solution

The fourth proportional to 12,102.55, 16,696.85 and 8,923.40 is: 12,310.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,102.55 : 16,696.85 = 8,923.40 : x
  2. Step 2: Convert to fraction form
    12,102.55/16,696.85 = 8,923.40/x
  3. Step 3: Cross multiply
    12,102.55x = 16,696.85 × 8,923.40
  4. Step 4: Simplify right side
    12,102.55x = 148,992,671.29
  5. Step 5: Solve for x
    x = 148,992,671.29/12,102.55
  6. Step 6: Final answer
    x = 12,310.85

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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.