Home / 6,780.46-10,172.52-6,129.82

Finding the Fourth Proportional to 6,780.46, 10,172.52 and 6,129.82

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Solution

The fourth proportional to 6,780.46, 10,172.52 and 6,129.82 is: 9,196.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,780.46 : 10,172.52 = 6,129.82 : x
  2. Step 2: Convert to fraction form
    6,780.46/10,172.52 = 6,129.82/x
  3. Step 3: Cross multiply
    6,780.46x = 10,172.52 × 6,129.82
  4. Step 4: Simplify right side
    6,780.46x = 62,355,736.84
  5. Step 5: Solve for x
    x = 62,355,736.84/6,780.46
  6. Step 6: Final answer
    x = 9,196.39

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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.