Home / 13,021.45-17,969.55-7,053.13

Finding the Fourth Proportional to 13,021.45, 17,969.55 and 7,053.13

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Solution

The fourth proportional to 13,021.45, 17,969.55 and 7,053.13 is: 9,733.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,021.45 : 17,969.55 = 7,053.13 : x
  2. Step 2: Convert to fraction form
    13,021.45/17,969.55 = 7,053.13/x
  3. Step 3: Cross multiply
    13,021.45x = 17,969.55 × 7,053.13
  4. Step 4: Simplify right side
    13,021.45x = 126,741,572.19
  5. Step 5: Solve for x
    x = 126,741,572.19/13,021.45
  6. Step 6: Final answer
    x = 9,733.29

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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.