Home / 11,731.05-16,188.85-6,426.05

Finding the Fourth Proportional to 11,731.05, 16,188.85 and 6,426.05

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Solution

The fourth proportional to 11,731.05, 16,188.85 and 6,426.05 is: 8,867.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,731.05 : 16,188.85 = 6,426.05 : x
  2. Step 2: Convert to fraction form
    11,731.05/16,188.85 = 6,426.05/x
  3. Step 3: Cross multiply
    11,731.05x = 16,188.85 × 6,426.05
  4. Step 4: Simplify right side
    11,731.05x = 104,030,327.41
  5. Step 5: Solve for x
    x = 104,030,327.41/11,731.05
  6. Step 6: Final answer
    x = 8,867.95

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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.