Home / 7,830.49-11,724.55-5,734.61

Finding the Fourth Proportional to 7,830.49, 11,724.55 and 5,734.61

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Solution

The fourth proportional to 7,830.49, 11,724.55 and 5,734.61 is: 8,586.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,830.49 : 11,724.55 = 5,734.61 : x
  2. Step 2: Convert to fraction form
    7,830.49/11,724.55 = 5,734.61/x
  3. Step 3: Cross multiply
    7,830.49x = 11,724.55 × 5,734.61
  4. Step 4: Simplify right side
    7,830.49x = 67,235,758.63
  5. Step 5: Solve for x
    x = 67,235,758.63/7,830.49
  6. Step 6: Final answer
    x = 8,586.41

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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.