Home / 11,800.28-16,283.86-6,422.74

Finding the Fourth Proportional to 11,800.28, 16,283.86 and 6,422.74

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Solution

The fourth proportional to 11,800.28, 16,283.86 and 6,422.74 is: 8,863.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,800.28 : 16,283.86 = 6,422.74 : x
  2. Step 2: Convert to fraction form
    11,800.28/16,283.86 = 6,422.74/x
  3. Step 3: Cross multiply
    11,800.28x = 16,283.86 × 6,422.74
  4. Step 4: Simplify right side
    11,800.28x = 104,587,051.87
  5. Step 5: Solve for x
    x = 104,587,051.87/11,800.28
  6. Step 6: Final answer
    x = 8,863.10

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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.