Home / 8,072.85-12,125.89-5,303.46

Finding the Fourth Proportional to 8,072.85, 12,125.89 and 5,303.46

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Solution

The fourth proportional to 8,072.85, 12,125.89 and 5,303.46 is: 7,966.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,072.85 : 12,125.89 = 5,303.46 : x
  2. Step 2: Convert to fraction form
    8,072.85/12,125.89 = 5,303.46/x
  3. Step 3: Cross multiply
    8,072.85x = 12,125.89 × 5,303.46
  4. Step 4: Simplify right side
    8,072.85x = 64,309,172.58
  5. Step 5: Solve for x
    x = 64,309,172.58/8,072.85
  6. Step 6: Final answer
    x = 7,966.11

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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.