Home / 18,125.31-27,187.62-4,977.19

Finding the Fourth Proportional to 18,125.31, 27,187.62 and 4,977.19

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Solution

The fourth proportional to 18,125.31, 27,187.62 and 4,977.19 is: 7,465.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,125.31 : 27,187.62 = 4,977.19 : x
  2. Step 2: Convert to fraction form
    18,125.31/27,187.62 = 4,977.19/x
  3. Step 3: Cross multiply
    18,125.31x = 27,187.62 × 4,977.19
  4. Step 4: Simplify right side
    18,125.31x = 135,317,950.39
  5. Step 5: Solve for x
    x = 135,317,950.39/18,125.31
  6. Step 6: Final answer
    x = 7,465.69

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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.