Home / 12,151.23-16,659.33-11,929.80

Finding the Fourth Proportional to 12,151.23, 16,659.33 and 11,929.80

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Solution

The fourth proportional to 12,151.23, 16,659.33 and 11,929.80 is: 16,355.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,151.23 : 16,659.33 = 11,929.80 : x
  2. Step 2: Convert to fraction form
    12,151.23/16,659.33 = 11,929.80/x
  3. Step 3: Cross multiply
    12,151.23x = 16,659.33 × 11,929.80
  4. Step 4: Simplify right side
    12,151.23x = 198,742,475.03
  5. Step 5: Solve for x
    x = 198,742,475.03/12,151.23
  6. Step 6: Final answer
    x = 16,355.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.