Home / 18,954.12-28,417.12-9,084

Finding the Fourth Proportional to 18,954.12, 28,417.12 and 9,084

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Solution

The fourth proportional to 18,954.12, 28,417.12 and 9,084 is: 13,619.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,954.12 : 28,417.12 = 9,084 : x
  2. Step 2: Convert to fraction form
    18,954.12/28,417.12 = 9,084/x
  3. Step 3: Cross multiply
    18,954.12x = 28,417.12 × 9,084
  4. Step 4: Simplify right side
    18,954.12x = 258,141,118.08
  5. Step 5: Solve for x
    x = 258,141,118.08/18,954.12
  6. Step 6: Final answer
    x = 13,619.26

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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.