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Finding the Fourth Proportional to 9,192.80, 13,756.80 and 6,276.80

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Solution

The fourth proportional to 9,192.80, 13,756.80 and 6,276.80 is: 9,393.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,192.80 : 13,756.80 = 6,276.80 : x
  2. Step 2: Convert to fraction form
    9,192.80/13,756.80 = 6,276.80/x
  3. Step 3: Cross multiply
    9,192.80x = 13,756.80 × 6,276.80
  4. Step 4: Simplify right side
    9,192.80x = 86,348,682.24
  5. Step 5: Solve for x
    x = 86,348,682.24/9,192.80
  6. Step 6: Final answer
    x = 9,393.08

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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.