Home / 9,119.09-13,678.63-7,042.12

Finding the Fourth Proportional to 9,119.09, 13,678.63 and 7,042.12

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Solution

The fourth proportional to 9,119.09, 13,678.63 and 7,042.12 is: 10,563.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,119.09 : 13,678.63 = 7,042.12 : x
  2. Step 2: Convert to fraction form
    9,119.09/13,678.63 = 7,042.12/x
  3. Step 3: Cross multiply
    9,119.09x = 13,678.63 × 7,042.12
  4. Step 4: Simplify right side
    9,119.09x = 96,326,553.90
  5. Step 5: Solve for x
    x = 96,326,553.90/9,119.09
  6. Step 6: Final answer
    x = 10,563.18

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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.