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Finding the Fourth Proportional to 13,041.22, 17,998.41 and 7,378.30

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Solution

The fourth proportional to 13,041.22, 17,998.41 and 7,378.30 is: 10,182.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,041.22 : 17,998.41 = 7,378.30 : x
  2. Step 2: Convert to fraction form
    13,041.22/17,998.41 = 7,378.30/x
  3. Step 3: Cross multiply
    13,041.22x = 17,998.41 × 7,378.30
  4. Step 4: Simplify right side
    13,041.22x = 132,797,668.50
  5. Step 5: Solve for x
    x = 132,797,668.50/13,041.22
  6. Step 6: Final answer
    x = 10,182.92

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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.