Home / 13,021.10-17,969.11-7,052.79

Finding the Fourth Proportional to 13,021.10, 17,969.11 and 7,052.79

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Solution

The fourth proportional to 13,021.10, 17,969.11 and 7,052.79 is: 9,732.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,021.10 : 17,969.11 = 7,052.79 : x
  2. Step 2: Convert to fraction form
    13,021.10/17,969.11 = 7,052.79/x
  3. Step 3: Cross multiply
    13,021.10x = 17,969.11 × 7,052.79
  4. Step 4: Simplify right side
    13,021.10x = 126,732,409.07
  5. Step 5: Solve for x
    x = 126,732,409.07/13,021.10
  6. Step 6: Final answer
    x = 9,732.85

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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.