Home / 11,706.96-16,155.60-6,401.78

Finding the Fourth Proportional to 11,706.96, 16,155.60 and 6,401.78

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Solution

The fourth proportional to 11,706.96, 16,155.60 and 6,401.78 is: 8,834.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,706.96 : 16,155.60 = 6,401.78 : x
  2. Step 2: Convert to fraction form
    11,706.96/16,155.60 = 6,401.78/x
  3. Step 3: Cross multiply
    11,706.96x = 16,155.60 × 6,401.78
  4. Step 4: Simplify right side
    11,706.96x = 103,424,596.97
  5. Step 5: Solve for x
    x = 103,424,596.97/11,706.96
  6. Step 6: Final answer
    x = 8,834.45

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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.