Home / 10,989.40-16,493.70-8,792.60

Finding the Fourth Proportional to 10,989.40, 16,493.70 and 8,792.60

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Solution

The fourth proportional to 10,989.40, 16,493.70 and 8,792.60 is: 13,196.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,989.40 : 16,493.70 = 8,792.60 : x
  2. Step 2: Convert to fraction form
    10,989.40/16,493.70 = 8,792.60/x
  3. Step 3: Cross multiply
    10,989.40x = 16,493.70 × 8,792.60
  4. Step 4: Simplify right side
    10,989.40x = 145,022,506.62
  5. Step 5: Solve for x
    x = 145,022,506.62/10,989.40
  6. Step 6: Final answer
    x = 13,196.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.