Home / 12,776.55-19,164.90-4,456.53

Finding the Fourth Proportional to 12,776.55, 19,164.90 and 4,456.53

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Solution

The fourth proportional to 12,776.55, 19,164.90 and 4,456.53 is: 6,684.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,776.55 : 19,164.90 = 4,456.53 : x
  2. Step 2: Convert to fraction form
    12,776.55/19,164.90 = 4,456.53/x
  3. Step 3: Cross multiply
    12,776.55x = 19,164.90 × 4,456.53
  4. Step 4: Simplify right side
    12,776.55x = 85,408,951.80
  5. Step 5: Solve for x
    x = 85,408,951.80/12,776.55
  6. Step 6: Final answer
    x = 6,684.82

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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.