Home / 12,136.76-18,194.28-4,739.48

Finding the Fourth Proportional to 12,136.76, 18,194.28 and 4,739.48

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Solution

The fourth proportional to 12,136.76, 18,194.28 and 4,739.48 is: 7,104.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,136.76 : 18,194.28 = 4,739.48 : x
  2. Step 2: Convert to fraction form
    12,136.76/18,194.28 = 4,739.48/x
  3. Step 3: Cross multiply
    12,136.76x = 18,194.28 × 4,739.48
  4. Step 4: Simplify right side
    12,136.76x = 86,231,426.17
  5. Step 5: Solve for x
    x = 86,231,426.17/12,136.76
  6. Step 6: Final answer
    x = 7,104.98

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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.