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Finding the Fourth Proportional to 13,041.48, 17,991.28 and 7,733.28

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Solution

The fourth proportional to 13,041.48, 17,991.28 and 7,733.28 is: 10,668.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,041.48 : 17,991.28 = 7,733.28 : x
  2. Step 2: Convert to fraction form
    13,041.48/17,991.28 = 7,733.28/x
  3. Step 3: Cross multiply
    13,041.48x = 17,991.28 × 7,733.28
  4. Step 4: Simplify right side
    13,041.48x = 139,131,605.80
  5. Step 5: Solve for x
    x = 139,131,605.80/13,041.48
  6. Step 6: Final answer
    x = 10,668.39

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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.