Home / 9,990.68-13,785.82-6,012.76

Finding the Fourth Proportional to 9,990.68, 13,785.82 and 6,012.76

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Solution

The fourth proportional to 9,990.68, 13,785.82 and 6,012.76 is: 8,296.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,990.68 : 13,785.82 = 6,012.76 : x
  2. Step 2: Convert to fraction form
    9,990.68/13,785.82 = 6,012.76/x
  3. Step 3: Cross multiply
    9,990.68x = 13,785.82 × 6,012.76
  4. Step 4: Simplify right side
    9,990.68x = 82,890,827.06
  5. Step 5: Solve for x
    x = 82,890,827.06/9,990.68
  6. Step 6: Final answer
    x = 8,296.82

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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.