Home / 19,564.20-26,990.21-13,194.90

Finding the Fourth Proportional to 19,564.20, 26,990.21 and 13,194.90

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Solution

The fourth proportional to 19,564.20, 26,990.21 and 13,194.90 is: 18,203.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,564.20 : 26,990.21 = 13,194.90 : x
  2. Step 2: Convert to fraction form
    19,564.20/26,990.21 = 13,194.90/x
  3. Step 3: Cross multiply
    19,564.20x = 26,990.21 × 13,194.90
  4. Step 4: Simplify right side
    19,564.20x = 356,133,154.92
  5. Step 5: Solve for x
    x = 356,133,154.92/19,564.20
  6. Step 6: Final answer
    x = 18,203.31

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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.