Home / 12,949.94-19,457.74-12,079.23

Finding the Fourth Proportional to 12,949.94, 19,457.74 and 12,079.23

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Solution

The fourth proportional to 12,949.94, 19,457.74 and 12,079.23 is: 18,149.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,949.94 : 19,457.74 = 12,079.23 : x
  2. Step 2: Convert to fraction form
    12,949.94/19,457.74 = 12,079.23/x
  3. Step 3: Cross multiply
    12,949.94x = 19,457.74 × 12,079.23
  4. Step 4: Simplify right side
    12,949.94x = 235,034,516.74
  5. Step 5: Solve for x
    x = 235,034,516.74/12,949.94
  6. Step 6: Final answer
    x = 18,149.47

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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.