Home / 11,780.28-16,255.98-6,474.98

Finding the Fourth Proportional to 11,780.28, 16,255.98 and 6,474.98

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Solution

The fourth proportional to 11,780.28, 16,255.98 and 6,474.98 is: 8,935.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,780.28 : 16,255.98 = 6,474.98 : x
  2. Step 2: Convert to fraction form
    11,780.28/16,255.98 = 6,474.98/x
  3. Step 3: Cross multiply
    11,780.28x = 16,255.98 × 6,474.98
  4. Step 4: Simplify right side
    11,780.28x = 105,257,145.38
  5. Step 5: Solve for x
    x = 105,257,145.38/11,780.28
  6. Step 6: Final answer
    x = 8,935.03

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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.