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Finding the Fourth Proportional to 9,168.84, 13,750.41 and 3,903.78

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Solution

The fourth proportional to 9,168.84, 13,750.41 and 3,903.78 is: 5,854.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,168.84 : 13,750.41 = 3,903.78 : x
  2. Step 2: Convert to fraction form
    9,168.84/13,750.41 = 3,903.78/x
  3. Step 3: Cross multiply
    9,168.84x = 13,750.41 × 3,903.78
  4. Step 4: Simplify right side
    9,168.84x = 53,678,575.55
  5. Step 5: Solve for x
    x = 53,678,575.55/9,168.84
  6. Step 6: Final answer
    x = 5,854.46

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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.