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Finding the Fourth Proportional to 11,615.99, 16,030.08 and 6,310.81

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Solution

The fourth proportional to 11,615.99, 16,030.08 and 6,310.81 is: 8,708.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,615.99 : 16,030.08 = 6,310.81 : x
  2. Step 2: Convert to fraction form
    11,615.99/16,030.08 = 6,310.81/x
  3. Step 3: Cross multiply
    11,615.99x = 16,030.08 × 6,310.81
  4. Step 4: Simplify right side
    11,615.99x = 101,162,789.16
  5. Step 5: Solve for x
    x = 101,162,789.16/11,615.99
  6. Step 6: Final answer
    x = 8,708.93

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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.