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Finding the Fourth Proportional to 8,503.30, 12,762.90 and 4,346.20

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Solution

The fourth proportional to 8,503.30, 12,762.90 and 4,346.20 is: 6,523.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,503.30 : 12,762.90 = 4,346.20 : x
  2. Step 2: Convert to fraction form
    8,503.30/12,762.90 = 4,346.20/x
  3. Step 3: Cross multiply
    8,503.30x = 12,762.90 × 4,346.20
  4. Step 4: Simplify right side
    8,503.30x = 55,470,115.98
  5. Step 5: Solve for x
    x = 55,470,115.98/8,503.30
  6. Step 6: Final answer
    x = 6,523.36

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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.