Home / 18,276.78-25,221.96-9,893.28

Finding the Fourth Proportional to 18,276.78, 25,221.96 and 9,893.28

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Solution

The fourth proportional to 18,276.78, 25,221.96 and 9,893.28 is: 13,652.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,276.78 : 25,221.96 = 9,893.28 : x
  2. Step 2: Convert to fraction form
    18,276.78/25,221.96 = 9,893.28/x
  3. Step 3: Cross multiply
    18,276.78x = 25,221.96 × 9,893.28
  4. Step 4: Simplify right side
    18,276.78x = 249,527,912.43
  5. Step 5: Solve for x
    x = 249,527,912.43/18,276.78
  6. Step 6: Final answer
    x = 13,652.73

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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.