Home / 18,965.20-26,171.97-10,581.70

Finding the Fourth Proportional to 18,965.20, 26,171.97 and 10,581.70

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Solution

The fourth proportional to 18,965.20, 26,171.97 and 10,581.70 is: 14,602.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,965.20 : 26,171.97 = 10,581.70 : x
  2. Step 2: Convert to fraction form
    18,965.20/26,171.97 = 10,581.70/x
  3. Step 3: Cross multiply
    18,965.20x = 26,171.97 × 10,581.70
  4. Step 4: Simplify right side
    18,965.20x = 276,943,934.95
  5. Step 5: Solve for x
    x = 276,943,934.95/18,965.20
  6. Step 6: Final answer
    x = 14,602.74

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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.