Home / 18,989.29-26,197.18-12,703.69

Finding the Fourth Proportional to 18,989.29, 26,197.18 and 12,703.69

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Solution

The fourth proportional to 18,989.29, 26,197.18 and 12,703.69 is: 17,525.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,989.29 : 26,197.18 = 12,703.69 : x
  2. Step 2: Convert to fraction form
    18,989.29/26,197.18 = 12,703.69/x
  3. Step 3: Cross multiply
    18,989.29x = 26,197.18 × 12,703.69
  4. Step 4: Simplify right side
    18,989.29x = 332,800,853.59
  5. Step 5: Solve for x
    x = 332,800,853.59/18,989.29
  6. Step 6: Final answer
    x = 17,525.71

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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.