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Finding the Fourth Proportional to 13,101.18, 19,651.76 and 7,550.99

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Solution

The fourth proportional to 13,101.18, 19,651.76 and 7,550.99 is: 11,326.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,101.18 : 19,651.76 = 7,550.99 : x
  2. Step 2: Convert to fraction form
    13,101.18/19,651.76 = 7,550.99/x
  3. Step 3: Cross multiply
    13,101.18x = 19,651.76 × 7,550.99
  4. Step 4: Simplify right side
    13,101.18x = 148,390,107.23
  5. Step 5: Solve for x
    x = 148,390,107.23/13,101.18
  6. Step 6: Final answer
    x = 11,326.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.