Home / 11,766.61-16,237.96-6,389.05

Finding the Fourth Proportional to 11,766.61, 16,237.96 and 6,389.05

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Solution

The fourth proportional to 11,766.61, 16,237.96 and 6,389.05 is: 8,816.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,766.61 : 16,237.96 = 6,389.05 : x
  2. Step 2: Convert to fraction form
    11,766.61/16,237.96 = 6,389.05/x
  3. Step 3: Cross multiply
    11,766.61x = 16,237.96 × 6,389.05
  4. Step 4: Simplify right side
    11,766.61x = 103,745,138.34
  5. Step 5: Solve for x
    x = 103,745,138.34/11,766.61
  6. Step 6: Final answer
    x = 8,816.91

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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.