Home / 13,021.08-17,969.10-7,052.76

Finding the Fourth Proportional to 13,021.08, 17,969.10 and 7,052.76

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Solution

The fourth proportional to 13,021.08, 17,969.10 and 7,052.76 is: 9,732.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,021.08 : 17,969.10 = 7,052.76 : x
  2. Step 2: Convert to fraction form
    13,021.08/17,969.10 = 7,052.76/x
  3. Step 3: Cross multiply
    13,021.08x = 17,969.10 × 7,052.76
  4. Step 4: Simplify right side
    13,021.08x = 126,731,749.72
  5. Step 5: Solve for x
    x = 126,731,749.72/13,021.08
  6. Step 6: Final answer
    x = 9,732.81

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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.