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Finding the Fourth Proportional to 13,277.52, 19,883.41 and 7,713.99

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Solution

The fourth proportional to 13,277.52, 19,883.41 and 7,713.99 is: 11,551.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,277.52 : 19,883.41 = 7,713.99 : x
  2. Step 2: Convert to fraction form
    13,277.52/19,883.41 = 7,713.99/x
  3. Step 3: Cross multiply
    13,277.52x = 19,883.41 × 7,713.99
  4. Step 4: Simplify right side
    13,277.52x = 153,380,425.91
  5. Step 5: Solve for x
    x = 153,380,425.91/13,277.52
  6. Step 6: Final answer
    x = 11,551.89

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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.