Home / 8,975.46-13,457.11-3,128.88

Finding the Fourth Proportional to 8,975.46, 13,457.11 and 3,128.88

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Solution

The fourth proportional to 8,975.46, 13,457.11 and 3,128.88 is: 4,691.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,975.46 : 13,457.11 = 3,128.88 : x
  2. Step 2: Convert to fraction form
    8,975.46/13,457.11 = 3,128.88/x
  3. Step 3: Cross multiply
    8,975.46x = 13,457.11 × 3,128.88
  4. Step 4: Simplify right side
    8,975.46x = 42,105,607.23
  5. Step 5: Solve for x
    x = 42,105,607.23/8,975.46
  6. Step 6: Final answer
    x = 4,691.19

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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.