Home / 11,780.87-16,257.51-6,475.64

Finding the Fourth Proportional to 11,780.87, 16,257.51 and 6,475.64

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Solution

The fourth proportional to 11,780.87, 16,257.51 and 6,475.64 is: 8,936.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,780.87 : 16,257.51 = 6,475.64 : x
  2. Step 2: Convert to fraction form
    11,780.87/16,257.51 = 6,475.64/x
  3. Step 3: Cross multiply
    11,780.87x = 16,257.51 × 6,475.64
  4. Step 4: Simplify right side
    11,780.87x = 105,277,700.77
  5. Step 5: Solve for x
    x = 105,277,700.77/11,780.87
  6. Step 6: Final answer
    x = 8,936.33

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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.