Home / 8,405.09-12,615.42-4,248.03

Finding the Fourth Proportional to 8,405.09, 12,615.42 and 4,248.03

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Solution

The fourth proportional to 8,405.09, 12,615.42 and 4,248.03 is: 6,375.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,405.09 : 12,615.42 = 4,248.03 : x
  2. Step 2: Convert to fraction form
    8,405.09/12,615.42 = 4,248.03/x
  3. Step 3: Cross multiply
    8,405.09x = 12,615.42 × 4,248.03
  4. Step 4: Simplify right side
    8,405.09x = 53,590,682.62
  5. Step 5: Solve for x
    x = 53,590,682.62/8,405.09
  6. Step 6: Final answer
    x = 6,375.98

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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.