Home / 12,426.90-18,628.20-11,114.70

Finding the Fourth Proportional to 12,426.90, 18,628.20 and 11,114.70

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Solution

The fourth proportional to 12,426.90, 18,628.20 and 11,114.70 is: 16,661.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,426.90 : 18,628.20 = 11,114.70 : x
  2. Step 2: Convert to fraction form
    12,426.90/18,628.20 = 11,114.70/x
  3. Step 3: Cross multiply
    12,426.90x = 18,628.20 × 11,114.70
  4. Step 4: Simplify right side
    12,426.90x = 207,046,854.54
  5. Step 5: Solve for x
    x = 207,046,854.54/12,426.90
  6. Step 6: Final answer
    x = 16,661.18

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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.