Home / 8,718.20-13,066.35-4,327.80

Finding the Fourth Proportional to 8,718.20, 13,066.35 and 4,327.80

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Solution

The fourth proportional to 8,718.20, 13,066.35 and 4,327.80 is: 6,486.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,718.20 : 13,066.35 = 4,327.80 : x
  2. Step 2: Convert to fraction form
    8,718.20/13,066.35 = 4,327.80/x
  3. Step 3: Cross multiply
    8,718.20x = 13,066.35 × 4,327.80
  4. Step 4: Simplify right side
    8,718.20x = 56,548,549.53
  5. Step 5: Solve for x
    x = 56,548,549.53/8,718.20
  6. Step 6: Final answer
    x = 6,486.27

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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.