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Finding the Fourth Proportional to 8,392.38, 12,588.54 and 2,548.98

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Solution

The fourth proportional to 8,392.38, 12,588.54 and 2,548.98 is: 3,823.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,392.38 : 12,588.54 = 2,548.98 : x
  2. Step 2: Convert to fraction form
    8,392.38/12,588.54 = 2,548.98/x
  3. Step 3: Cross multiply
    8,392.38x = 12,588.54 × 2,548.98
  4. Step 4: Simplify right side
    8,392.38x = 32,087,936.69
  5. Step 5: Solve for x
    x = 32,087,936.69/8,392.38
  6. Step 6: Final answer
    x = 3,823.46

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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.