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Finding the Fourth Proportional to 8,777.97, 12,118.01 and 6,784.02

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Solution

The fourth proportional to 8,777.97, 12,118.01 and 6,784.02 is: 9,365.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,777.97 : 12,118.01 = 6,784.02 : x
  2. Step 2: Convert to fraction form
    8,777.97/12,118.01 = 6,784.02/x
  3. Step 3: Cross multiply
    8,777.97x = 12,118.01 × 6,784.02
  4. Step 4: Simplify right side
    8,777.97x = 82,208,788.28
  5. Step 5: Solve for x
    x = 82,208,788.28/8,777.97
  6. Step 6: Final answer
    x = 9,365.35

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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.