Home / 12,092.58-18,117.60-7,877.04

Finding the Fourth Proportional to 12,092.58, 18,117.60 and 7,877.04

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Solution

The fourth proportional to 12,092.58, 18,117.60 and 7,877.04 is: 11,801.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,092.58 : 18,117.60 = 7,877.04 : x
  2. Step 2: Convert to fraction form
    12,092.58/18,117.60 = 7,877.04/x
  3. Step 3: Cross multiply
    12,092.58x = 18,117.60 × 7,877.04
  4. Step 4: Simplify right side
    12,092.58x = 142,713,059.90
  5. Step 5: Solve for x
    x = 142,713,059.90/12,092.58
  6. Step 6: Final answer
    x = 11,801.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.