Home / 11,824.81-16,318.01-6,447.30

Finding the Fourth Proportional to 11,824.81, 16,318.01 and 6,447.30

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Solution

The fourth proportional to 11,824.81, 16,318.01 and 6,447.30 is: 8,897.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,824.81 : 16,318.01 = 6,447.30 : x
  2. Step 2: Convert to fraction form
    11,824.81/16,318.01 = 6,447.30/x
  3. Step 3: Cross multiply
    11,824.81x = 16,318.01 × 6,447.30
  4. Step 4: Simplify right side
    11,824.81x = 105,207,105.87
  5. Step 5: Solve for x
    x = 105,207,105.87/11,824.81
  6. Step 6: Final answer
    x = 8,897.15

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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.