Home / 8,340.27-11,513.76-6,447.59

Finding the Fourth Proportional to 8,340.27, 11,513.76 and 6,447.59

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Solution

The fourth proportional to 8,340.27, 11,513.76 and 6,447.59 is: 8,900.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,340.27 : 11,513.76 = 6,447.59 : x
  2. Step 2: Convert to fraction form
    8,340.27/11,513.76 = 6,447.59/x
  3. Step 3: Cross multiply
    8,340.27x = 11,513.76 × 6,447.59
  4. Step 4: Simplify right side
    8,340.27x = 74,236,003.84
  5. Step 5: Solve for x
    x = 74,236,003.84/8,340.27
  6. Step 6: Final answer
    x = 8,900.91

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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.