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Finding the Fourth Proportional to 8,913.50, 13,362.31 and 4,230.62

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Solution

The fourth proportional to 8,913.50, 13,362.31 and 4,230.62 is: 6,342.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,913.50 : 13,362.31 = 4,230.62 : x
  2. Step 2: Convert to fraction form
    8,913.50/13,362.31 = 4,230.62/x
  3. Step 3: Cross multiply
    8,913.50x = 13,362.31 × 4,230.62
  4. Step 4: Simplify right side
    8,913.50x = 56,530,855.93
  5. Step 5: Solve for x
    x = 56,530,855.93/8,913.50
  6. Step 6: Final answer
    x = 6,342.16

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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.