Home / 8,618.12-12,933.62-6,402.06

Finding the Fourth Proportional to 8,618.12, 12,933.62 and 6,402.06

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Solution

The fourth proportional to 8,618.12, 12,933.62 and 6,402.06 is: 9,607.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,618.12 : 12,933.62 = 6,402.06 : x
  2. Step 2: Convert to fraction form
    8,618.12/12,933.62 = 6,402.06/x
  3. Step 3: Cross multiply
    8,618.12x = 12,933.62 × 6,402.06
  4. Step 4: Simplify right side
    8,618.12x = 82,801,779.25
  5. Step 5: Solve for x
    x = 82,801,779.25/8,618.12
  6. Step 6: Final answer
    x = 9,607.88

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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.