Home / 7,634.84-11,456.55-4,124.78

Finding the Fourth Proportional to 7,634.84, 11,456.55 and 4,124.78

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Solution

The fourth proportional to 7,634.84, 11,456.55 and 4,124.78 is: 6,189.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,634.84 : 11,456.55 = 4,124.78 : x
  2. Step 2: Convert to fraction form
    7,634.84/11,456.55 = 4,124.78/x
  3. Step 3: Cross multiply
    7,634.84x = 11,456.55 × 4,124.78
  4. Step 4: Simplify right side
    7,634.84x = 47,255,748.31
  5. Step 5: Solve for x
    x = 47,255,748.31/7,634.84
  6. Step 6: Final answer
    x = 6,189.49

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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.