Home / 8,819.61-12,171.50-5,464.18

Finding the Fourth Proportional to 8,819.61, 12,171.50 and 5,464.18

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Solution

The fourth proportional to 8,819.61, 12,171.50 and 5,464.18 is: 7,540.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,819.61 : 12,171.50 = 5,464.18 : x
  2. Step 2: Convert to fraction form
    8,819.61/12,171.50 = 5,464.18/x
  3. Step 3: Cross multiply
    8,819.61x = 12,171.50 × 5,464.18
  4. Step 4: Simplify right side
    8,819.61x = 66,507,266.87
  5. Step 5: Solve for x
    x = 66,507,266.87/8,819.61
  6. Step 6: Final answer
    x = 7,540.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.