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Finding the Fourth Proportional to 9,009.53, 12,436.54 and 6,777.88

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Solution

The fourth proportional to 9,009.53, 12,436.54 and 6,777.88 is: 9,356.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,009.53 : 12,436.54 = 6,777.88 : x
  2. Step 2: Convert to fraction form
    9,009.53/12,436.54 = 6,777.88/x
  3. Step 3: Cross multiply
    9,009.53x = 12,436.54 × 6,777.88
  4. Step 4: Simplify right side
    9,009.53x = 84,293,327.70
  5. Step 5: Solve for x
    x = 84,293,327.70/9,009.53
  6. Step 6: Final answer
    x = 9,356.02

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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.