Home / 16,078.70-22,197.14-12,109.30

Finding the Fourth Proportional to 16,078.70, 22,197.14 and 12,109.30

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Solution

The fourth proportional to 16,078.70, 22,197.14 and 12,109.30 is: 16,717.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,078.70 : 22,197.14 = 12,109.30 : x
  2. Step 2: Convert to fraction form
    16,078.70/22,197.14 = 12,109.30/x
  3. Step 3: Cross multiply
    16,078.70x = 22,197.14 × 12,109.30
  4. Step 4: Simplify right side
    16,078.70x = 268,791,756.77
  5. Step 5: Solve for x
    x = 268,791,756.77/16,078.70
  6. Step 6: Final answer
    x = 16,717.25

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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.