Home / 18,125.37-27,188.73-4,977.72

Finding the Fourth Proportional to 18,125.37, 27,188.73 and 4,977.72

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Solution

The fourth proportional to 18,125.37, 27,188.73 and 4,977.72 is: 7,466.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,125.37 : 27,188.73 = 4,977.72 : x
  2. Step 2: Convert to fraction form
    18,125.37/27,188.73 = 4,977.72/x
  3. Step 3: Cross multiply
    18,125.37x = 27,188.73 × 4,977.72
  4. Step 4: Simplify right side
    18,125.37x = 135,337,885.10
  5. Step 5: Solve for x
    x = 135,337,885.10/18,125.37
  6. Step 6: Final answer
    x = 7,466.77

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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.