Home / 8,577.96-12,864.30-3,312.55

Finding the Fourth Proportional to 8,577.96, 12,864.30 and 3,312.55

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Solution

The fourth proportional to 8,577.96, 12,864.30 and 3,312.55 is: 4,967.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,577.96 : 12,864.30 = 3,312.55 : x
  2. Step 2: Convert to fraction form
    8,577.96/12,864.30 = 3,312.55/x
  3. Step 3: Cross multiply
    8,577.96x = 12,864.30 × 3,312.55
  4. Step 4: Simplify right side
    8,577.96x = 42,613,636.97
  5. Step 5: Solve for x
    x = 42,613,636.97/8,577.96
  6. Step 6: Final answer
    x = 4,967.81

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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.