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Finding the Fourth Proportional to 13,277.80, 19,908.06 and 6,356.20

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Solution

The fourth proportional to 13,277.80, 19,908.06 and 6,356.20 is: 9,530.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,277.80 : 19,908.06 = 6,356.20 : x
  2. Step 2: Convert to fraction form
    13,277.80/19,908.06 = 6,356.20/x
  3. Step 3: Cross multiply
    13,277.80x = 19,908.06 × 6,356.20
  4. Step 4: Simplify right side
    13,277.80x = 126,539,610.97
  5. Step 5: Solve for x
    x = 126,539,610.97/13,277.80
  6. Step 6: Final answer
    x = 9,530.16

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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.