Home / 18,276.18-25,221.20-9,892.68

Finding the Fourth Proportional to 18,276.18, 25,221.20 and 9,892.68

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Solution

The fourth proportional to 18,276.18, 25,221.20 and 9,892.68 is: 13,651.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,276.18 : 25,221.20 = 9,892.68 : x
  2. Step 2: Convert to fraction form
    18,276.18/25,221.20 = 9,892.68/x
  3. Step 3: Cross multiply
    18,276.18x = 25,221.20 × 9,892.68
  4. Step 4: Simplify right side
    18,276.18x = 249,505,260.82
  5. Step 5: Solve for x
    x = 249,505,260.82/18,276.18
  6. Step 6: Final answer
    x = 13,651.94

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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.