Home / 12,169.40-16,793.90-7,136.60

Finding the Fourth Proportional to 12,169.40, 16,793.90 and 7,136.60

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Solution

The fourth proportional to 12,169.40, 16,793.90 and 7,136.60 is: 9,848.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,169.40 : 16,793.90 = 7,136.60 : x
  2. Step 2: Convert to fraction form
    12,169.40/16,793.90 = 7,136.60/x
  3. Step 3: Cross multiply
    12,169.40x = 16,793.90 × 7,136.60
  4. Step 4: Simplify right side
    12,169.40x = 119,851,227.09
  5. Step 5: Solve for x
    x = 119,851,227.09/12,169.40
  6. Step 6: Final answer
    x = 9,848.58

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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.