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Finding the Fourth Proportional to 11,615.96, 16,030.01 and 6,310.79

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Solution

The fourth proportional to 11,615.96, 16,030.01 and 6,310.79 is: 8,708.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,615.96 : 16,030.01 = 6,310.79 : x
  2. Step 2: Convert to fraction form
    11,615.96/16,030.01 = 6,310.79/x
  3. Step 3: Cross multiply
    11,615.96x = 16,030.01 × 6,310.79
  4. Step 4: Simplify right side
    11,615.96x = 101,162,026.81
  5. Step 5: Solve for x
    x = 101,162,026.81/11,615.96
  6. Step 6: Final answer
    x = 8,708.88

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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.