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Finding the Fourth Proportional to 8,353.47, 12,529.12 and 3,973.71

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Solution

The fourth proportional to 8,353.47, 12,529.12 and 3,973.71 is: 5,960.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,353.47 : 12,529.12 = 3,973.71 : x
  2. Step 2: Convert to fraction form
    8,353.47/12,529.12 = 3,973.71/x
  3. Step 3: Cross multiply
    8,353.47x = 12,529.12 × 3,973.71
  4. Step 4: Simplify right side
    8,353.47x = 49,787,089.44
  5. Step 5: Solve for x
    x = 49,787,089.44/8,353.47
  6. Step 6: Final answer
    x = 5,960.05

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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.