Home / 12,788.57-19,182.90-4,468.55

Finding the Fourth Proportional to 12,788.57, 19,182.90 and 4,468.55

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Solution

The fourth proportional to 12,788.57, 19,182.90 and 4,468.55 is: 6,702.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,788.57 : 19,182.90 = 4,468.55 : x
  2. Step 2: Convert to fraction form
    12,788.57/19,182.90 = 4,468.55/x
  3. Step 3: Cross multiply
    12,788.57x = 19,182.90 × 4,468.55
  4. Step 4: Simplify right side
    12,788.57x = 85,719,747.80
  5. Step 5: Solve for x
    x = 85,719,747.80/12,788.57
  6. Step 6: Final answer
    x = 6,702.84

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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.