Home / 14,239.44-21,359.16-9,078.12

Finding the Fourth Proportional to 14,239.44, 21,359.16 and 9,078.12

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Solution

The fourth proportional to 14,239.44, 21,359.16 and 9,078.12 is: 13,617.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,239.44 : 21,359.16 = 9,078.12 : x
  2. Step 2: Convert to fraction form
    14,239.44/21,359.16 = 9,078.12/x
  3. Step 3: Cross multiply
    14,239.44x = 21,359.16 × 9,078.12
  4. Step 4: Simplify right side
    14,239.44x = 193,901,017.58
  5. Step 5: Solve for x
    x = 193,901,017.58/14,239.44
  6. Step 6: Final answer
    x = 13,617.18

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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.