Home / 18,987.67-26,200.72-10,489.27

Finding the Fourth Proportional to 18,987.67, 26,200.72 and 10,489.27

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Solution

The fourth proportional to 18,987.67, 26,200.72 and 10,489.27 is: 14,473.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,987.67 : 26,200.72 = 10,489.27 : x
  2. Step 2: Convert to fraction form
    18,987.67/26,200.72 = 10,489.27/x
  3. Step 3: Cross multiply
    18,987.67x = 26,200.72 × 10,489.27
  4. Step 4: Simplify right side
    18,987.67x = 274,826,437.70
  5. Step 5: Solve for x
    x = 274,826,437.70/18,987.67
  6. Step 6: Final answer
    x = 14,473.95

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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.