Home / 17,784.20-26,618.70-12,600.20

Finding the Fourth Proportional to 17,784.20, 26,618.70 and 12,600.20

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Solution

The fourth proportional to 17,784.20, 26,618.70 and 12,600.20 is: 18,859.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,784.20 : 26,618.70 = 12,600.20 : x
  2. Step 2: Convert to fraction form
    17,784.20/26,618.70 = 12,600.20/x
  3. Step 3: Cross multiply
    17,784.20x = 26,618.70 × 12,600.20
  4. Step 4: Simplify right side
    17,784.20x = 335,400,943.74
  5. Step 5: Solve for x
    x = 335,400,943.74/17,784.20
  6. Step 6: Final answer
    x = 18,859.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.