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Finding the Fourth Proportional to 26,557.76, 39,836.64 and 8,783.64

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Solution

The fourth proportional to 26,557.76, 39,836.64 and 8,783.64 is: 13,175.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,557.76 : 39,836.64 = 8,783.64 : x
  2. Step 2: Convert to fraction form
    26,557.76/39,836.64 = 8,783.64/x
  3. Step 3: Cross multiply
    26,557.76x = 39,836.64 × 8,783.64
  4. Step 4: Simplify right side
    26,557.76x = 349,910,660.65
  5. Step 5: Solve for x
    x = 349,910,660.65/26,557.76
  6. Step 6: Final answer
    x = 13,175.46

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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.