Home / 11,681.94-16,121.03-6,376.76

Finding the Fourth Proportional to 11,681.94, 16,121.03 and 6,376.76

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Solution

The fourth proportional to 11,681.94, 16,121.03 and 6,376.76 is: 8,799.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,681.94 : 16,121.03 = 6,376.76 : x
  2. Step 2: Convert to fraction form
    11,681.94/16,121.03 = 6,376.76/x
  3. Step 3: Cross multiply
    11,681.94x = 16,121.03 × 6,376.76
  4. Step 4: Simplify right side
    11,681.94x = 102,799,953.32
  5. Step 5: Solve for x
    x = 102,799,953.32/11,681.94
  6. Step 6: Final answer
    x = 8,799.90

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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.