Home / 18,939.57-26,125.92-11,853.69

Finding the Fourth Proportional to 18,939.57, 26,125.92 and 11,853.69

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Solution

The fourth proportional to 18,939.57, 26,125.92 and 11,853.69 is: 16,351.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,939.57 : 26,125.92 = 11,853.69 : x
  2. Step 2: Convert to fraction form
    18,939.57/26,125.92 = 11,853.69/x
  3. Step 3: Cross multiply
    18,939.57x = 26,125.92 × 11,853.69
  4. Step 4: Simplify right side
    18,939.57x = 309,688,572.29
  5. Step 5: Solve for x
    x = 309,688,572.29/18,939.57
  6. Step 6: Final answer
    x = 16,351.40

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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.