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Finding the Fourth Proportional to 8,346.80, 12,520.20 and 5,066.30

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Solution

The fourth proportional to 8,346.80, 12,520.20 and 5,066.30 is: 7,599.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,346.80 : 12,520.20 = 5,066.30 : x
  2. Step 2: Convert to fraction form
    8,346.80/12,520.20 = 5,066.30/x
  3. Step 3: Cross multiply
    8,346.80x = 12,520.20 × 5,066.30
  4. Step 4: Simplify right side
    8,346.80x = 63,431,089.26
  5. Step 5: Solve for x
    x = 63,431,089.26/8,346.80
  6. Step 6: Final answer
    x = 7,599.45

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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.