Home / 13,076.12-18,044.30-7,107.75

Finding the Fourth Proportional to 13,076.12, 18,044.30 and 7,107.75

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Solution

The fourth proportional to 13,076.12, 18,044.30 and 7,107.75 is: 9,808.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,076.12 : 18,044.30 = 7,107.75 : x
  2. Step 2: Convert to fraction form
    13,076.12/18,044.30 = 7,107.75/x
  3. Step 3: Cross multiply
    13,076.12x = 18,044.30 × 7,107.75
  4. Step 4: Simplify right side
    13,076.12x = 128,254,391.09
  5. Step 5: Solve for x
    x = 128,254,391.09/13,076.12
  6. Step 6: Final answer
    x = 9,808.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.