Home / 18,425.60-27,638.28-5,277.96

Finding the Fourth Proportional to 18,425.60, 27,638.28 and 5,277.96

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Solution

The fourth proportional to 18,425.60, 27,638.28 and 5,277.96 is: 7,916.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,425.60 : 27,638.28 = 5,277.96 : x
  2. Step 2: Convert to fraction form
    18,425.60/27,638.28 = 5,277.96/x
  3. Step 3: Cross multiply
    18,425.60x = 27,638.28 × 5,277.96
  4. Step 4: Simplify right side
    18,425.60x = 145,873,736.31
  5. Step 5: Solve for x
    x = 145,873,736.31/18,425.60
  6. Step 6: Final answer
    x = 7,916.91

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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.