Home / 12,823.25-19,197.72-7,877.90

Finding the Fourth Proportional to 12,823.25, 19,197.72 and 7,877.90

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Solution

The fourth proportional to 12,823.25, 19,197.72 and 7,877.90 is: 11,794.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,823.25 : 19,197.72 = 7,877.90 : x
  2. Step 2: Convert to fraction form
    12,823.25/19,197.72 = 7,877.90/x
  3. Step 3: Cross multiply
    12,823.25x = 19,197.72 × 7,877.90
  4. Step 4: Simplify right side
    12,823.25x = 151,237,622.40
  5. Step 5: Solve for x
    x = 151,237,622.40/12,823.25
  6. Step 6: Final answer
    x = 11,794.02

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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.