Home / 8,507.16-12,759.21-3,169.35

Finding the Fourth Proportional to 8,507.16, 12,759.21 and 3,169.35

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Solution

The fourth proportional to 8,507.16, 12,759.21 and 3,169.35 is: 4,753.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,507.16 : 12,759.21 = 3,169.35 : x
  2. Step 2: Convert to fraction form
    8,507.16/12,759.21 = 3,169.35/x
  3. Step 3: Cross multiply
    8,507.16x = 12,759.21 × 3,169.35
  4. Step 4: Simplify right side
    8,507.16x = 40,438,402.21
  5. Step 5: Solve for x
    x = 40,438,402.21/8,507.16
  6. Step 6: Final answer
    x = 4,753.45

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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.